Drop free dry fire practice and training magazine device
The dry fire training device addresses the limitations of existing systems by using a lever mechanism to automatically reset the trigger and provide realistic training scenarios, ensuring proper muscle memory development and preventing firearm wear, while allowing safe and effective home practice.
Patent Information
- Application Number
- PCT/US2025/012374
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-19
- Filing Date
- 2025-01-21
- Publication Date
- 2025-07-24
AI Technical Summary
Existing dry fire training devices for firearms do not accurately simulate the muscle memory training required for live fire scenarios, cause wear and tear on firearms, and lack the ability to drop freely from the magazine well like live ammunition, leading to improper muscle memory development and potential damage to the firing pin.
A dry fire training device with a rigid outer case and a lever mechanism that engages with the firearm's magazine well, allowing the lever to pivot between positions to reset the trigger mechanism automatically, providing tactile and audible feedback, and dropping freely when the magazine retention is released, mimicking live fire operations.
The device enables precise muscle memory training, prevents firing pin damage, allows safe home practice, and easily inserts into various firearms, while simulating the action of swapping magazines, enhancing training effectiveness and safety.
Smart Images

Figure US2025012374_24072025_PF_FP_ABST
Abstract
Description
DROP FREE DRY FIRE PRACTICE AND TRAINING 'MAGAZINE DEVICECROSS-REFERENCE TO RELATED APPLICATION^)This application claims priority to U.S. Provisional Patent Application Serial No.63 / 623,157 that was filed on 19 January 2024 entitled “DROP FREE DRY FIRE PRACTICEAND TRAINING MAGAZINE DEVICE,” the entire contents and disclosure thereof is fully inc-oiporated by this reference as if fully restated herein.FIELD
[0002] The present application relates to firearms and mare particularly to dry fire practice and training magazines for firearms.BACKGROUND
[0003] Live fire (using five ammunition) is essential to practice drawing and firing a weapon. and historically has been the primary method of training with firearms. The practice process builds muscle memory, and helps the shooter develop proper techniques of delivery' and complete weapon control. There are several negatives of this type of practice. Using ammunition is an ongoing expense, and measures have to be taken to practice with safety. This could mean traveling to a firing range, providing safety equipment for the shooter and possibly others, and allotting special time in the schedule for the practice session.
[0004] More recently, experts have recognized that dry tire practice (practicing without live ammunition) is an essential addition for live fire practice to be successful and effective. Dry firing is another process of building muscle memory whereby a firearm, especially a pistol or handgun. is drawn, aimed, and fired without using live ammunition. This enables the practice of firing a weapon to proceed smoothly and accurately without all of the negatives of live fire practice.Because no live ammunition is used, there is no ongoing expense, there is no need to use safety equipment, a special shooting environment is not necessary, and practicing can be accomplished in much less time.
[0005] Dry firing also allows the shooter to practice in the actual environment where the weapon may need to be used for protection such as in the home. With complete safety, actual shooting scenarios can be practiced in and around the home.[0006| Practicing at the range can also be improved. When live fire is practiced at the range, the novice shooter usually has to spend a significant amount of time and expend a lot of ammunition getting accustomed to the report and recoil of the pistol. Before live practice begins, some dry fire practicing can be done. This gets the shooter accustomed to the trigger feel before having to deal with the recoil and the report of live firing.
[0007] One negative factor with most methods of dry firing occurs because when a semiautomatic pistol is live fired, the live firing resets the firing pin and / or trigger mechanism and the firearm is ready to be fired again immediately until the magazine is empty. The shooter's hands remain in the firing position, and just the trigger finger and the trigger mechanism are employed.With normal dry fire practice, after the first activation of the trigger mechanism releasing the firing pin, the shooter must remove a hand from the pistol, and “rack” the slide back in order to reset the tiring pin and to return the trigger mechanism and firing pin to an unfired position. The pistol is then ready for another activation. This must be done each time a shot is simulated. Doing this teaches improper muscle memory because it is not at all what happens during actual live fire. When people are in real shooting situations, they need to be able to depend on simply acting upon how they have practiced. Anything else could be deadly and some situations have proven catastrophic.
[0008] Another negative for standard dry fire practice is wear and tear caused by repeated releasing of a weapon's firing pin without having the cushioning effect of the firing pin striking a round of ammunition.Another shortcoming of dry lire practice activities is that it. does not adequately train the user to reload or swap an empty magazine for a full magazine, The dry fire training magazines known prior to the present invention do not release from the magazine well of the firearm in the same manner and motion as live fire magazines. Users who practice and train with dry- fire training magazines do not develop the muscle memory and habit associated with releasing an empty magazine and replacing the empty magazine with a foil magazine because the actions, motions, and muscle movements associated with the dry fire training magazine are too different from those associated with live fire magazines.
[0010] Some firearm training systems incorporate computer graphics into the training scenario. Other patents address the duplication of a pistol's recoil, laser marking of "shots”, projecting images onto a screen, etc.
[0011] Further drawbacks of known devices and systems are that such devices / systems are riser intensive and / or expensive to purchase, and significantly do not allow a shooter to use a fully functioning pistol that may already be owned. There is also a learning curve and training necessary to use such devices / systems. Known dry fire practice devices, such as those disclosed. at U.S. Pat.Nos. 9,182,189 and 1 1,460,271 and international PCT patent application numberPCT / US2024 / 021924 resolve various of these drawbacks including, but not limited to, resolving the "hands-free" trigger mechanism reset problem and the possible firing pin damage problem of normal dry fire practice. The entirety of U.S. Pat. Nos. 9, 182, 189 and 11 ,460,271 and internationalPCT patent application number PCT / US2024 / 021924 are incorporated by reference in their entireties, as if fully restated herein.
[0012] Previous versions of the dry fire practice device, such as those disclosed at U.S. Pat.Nos. 9,182,189 and 11,460,271, included a swing lock configured to interact with a member in the pistol’s magazine well to lift and place the lever in the proper position with respect to the pistol’s trigger mechanism when the device is inserted into the pistol’s magazine well. T he swing lock was discovered to have drawbacks when used with some smaller models of firearms in that it would catch in the magazine well of some pistols causing unnecessary wear and tear. In some rare examples, the swing lock unnecessarily scored the pistol’s magazine well after repeated use. A further drawback was the swing lock included additional moving parts that created an additional possible point-of-failure. Furthermore, due to the configuration of the swing lock, it was necessarily narrower than the lever. It was discovered that the swing lock was potentially problematic when the user desired the swing lock to be as wide as or wider than the lever. An improved dry fire training device with a fixed or integrally molded trigger bias component was disclosed in U.S. provisional patent application serial number 63 / 456,279 and international PCT patent application number PCT / US2024 / 021924. The entirety of U.S. Pat. Nos. 9,182,189 and11,460,271 and U.S. provisional patent application serial number 63 / 456,279 and internationalPCT patent application number PCT / US2024 / 021924 are incorporated by reference in their entireties, as if fully restated herein.[0013| There is a remaining need for further improved dry fire training devices for use with fully functioning firearms, that allow' for precise muscle memory training, are simple to operate, prevent the firing pin of the fully functioning firearm from being damaged, provide for safe on- site home training, insert easily into the magazine well of the fully functioning firearm, havecapabilities to interact with a variety of other functional and / or training systems, and have the ability to drop freely when the magazine retention is released. The present application improves upon U.S. Pat, Nos. 9,182,189 and 11,460,271 and U.S. provisional patent application serial number 6.3 / 456,279 and international PCT patent application number PCT / US2024 / 021924.
[0014] Persons having ordinary skill in the art will readily recognize that different manufacturers and models of firearms include various different parts and components in their respective trigger mechanisms. Throughout this disclosure, the term “trigger mechanism” refers to and includes any part of the trigger assembly from the trigger through the striker, firing pin, hammer, or similar structure.SUMMARY
[0015] According to one aspect, a dry fire training device is designed for use with a folly functional firearm with a trigger mechanism. The dry fire training device includes a rigid outer case. The rigid outer case is designed to engage with the magazine slot or well of the firearm.Within. the outer case is a lever. The lever is configured to pi vot between two positions - a first for resting) position and a second (or firing) position. The lever is biased in the first position. The lever includes a lever head and a plunger. The lever head is preferably moveably attached to the lever and sized and shape to move in a corresponding manner with the plunger. The plunger is configured such that when the rigid outer case is inserted into the magazine well of the fireaim, the plunger frictional ly engages with the interior surface of the magazine well and moves the lever head from a retracted position to a protruding position and also positions tire lever behind tire trigger mechanism and in the first position. When the trigger mechanism is pulled the trigger mechanism pushes the lever into the second position. When the nigger mechanism is released, the lever returns to its first position and pushes or follows the trigger mechanism back to its originalposition, ready to fire again. Also within the outer case is a detent reed connected to the lever. The detent reed provides tactile and audible feedback every time the trigger mechanism is pulled and the lever is pivoted between positions. The device includes a compression spring functionally situated between the lever and the outer case to bias the lever in the first position. When the firearm's magazine .retaining catch is released, the spring biased plunger returns to its extended position, which also moves the lever head to its fully retracted position. The device is then free to drop away from the magazine well without significant frictional resistance.
[0016] In some embodiments, the exterior surface of the bottom end portion of the outer case includes a removable attachment interface configured to engage with a firearm accessories mounting platform, such as (but not limited to) the Picatinny rail system, hi some embodiments, the attachment interface is fixedly connected to and integral with the outer case. In some other embodiments, the attachment interface is removably attached to the outer case.
[0017] According to another aspect, a method of manufacturing a dry fire training device, designed for use with a fully functional firearm with a trigger mechanism, includes providing a rigid outer case. The rigid outer case is designed to engage with the magazine well of the firearm.Within the outer case a lever is arranged to pivot between two positions a first position and a second position. The lever is biased in the first position. The lever head is optionally rotatably attached to the lever. The plunger is configured such that when the rigid outer case is folly inserted into the magazine well of the firearm, the plunger frictionally engages with the interior surface of the magazine well and the lever head moves to its protruding position and the lever is positioned behind the trigger mechanism and in the first position. When the trigger mechanism is pulled the trigger mechanism pushes the lever into the second position. When the trigger mechanism is released, the lever returns to its first position and pushes or follows the trigger mechanism back toits original position, ready to fire again. Also within the outer case a detent reed is connected to the lever. The detent reed provides tactile and audible feedback every time the trigger mechanism is pulled and the lever is pivoted between positions. In some embodiments, a compression spring is functionally situated between, the lever and the outer case to bias the lever in the first position.
[0018] According to another aspect, a method of using the dry' fire training device includes inserting the training device into the magazine well of a fully functional firearm with a trigger mechanism and actuating the trigger mechanism one or more times. In some embodiments, the method of use also includes removing the dry fire training device from the magazine well of the firearm and / or reinserting another (or the same) dry fire training device into the magazine well.
[0019] The foregoing is intended to be illustrative and not meant in a limiting sense. Many possible embodiments may be made and will be readily evident upon a study of the entire specification and accompanying drawings comprising a part thereof. Various features and subcombinations may be employed without reference to other features and subcombinations.Benefits will become apparent from the description set forth in this specification taken in connection with the accompanying drawings, wherein is set forth by way of illustration and example, one or more ernbodiment(s) of the present concept and various features thereof.BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Various preferred embodiments of the present inventive concept, illustrative of the best. mode in which the applicant has contemplated applying the principles, are set forth in the fol lowing description and shown in the drawings. The drawings are not intended to limit the scope of tire invention in any way. The full scope of the invention is set forth in the accompanying claims and, accordingly, the drawings shall be interpreted as illustrative and not in a limiting sense.
[0021] Fig. I is an exploded perspective view of an embodiment of a dry fire training device.
[0022] Fig. 2 is an exploded perspective view of another embodiment of a dry lire training device.
[0023] Fig. 3 is an exploded perspective view of a lever assembly of the dry fire training device shown in Fig. 1.
[0924] Fig. 4 is a perspec tive view of the dry fire training device shown in Fig. 1.
[0025] Fig. 5 is a side view' of the dry fire training device shown in Fig. I .
[0026] Fig. 6 is a bottom view of the dry fire training device shown in Fig. 1.
[0027] Fig. 7 is a front view of the dry fire training device shown in Fig. 1.
[0028] Fig. 8 is a perspective view of a first outer case half of the dry fire training device shown in Fig. 1.
[0029] Fig. 9 is a side view of the first outer case half shown in Fig. 8.
[0030] Fig. .10 is a front view of the first outer case half shown in Fig. 8.
[0031] Fig. 11 is a bottom view of the first outer case half shown in Fig. 8.
[8032] Fig. 12 is a reverse side view of the first outer case half sho wn in Fig. 8.
[0033] Fig. 13 is a perspective view of a second outer case half of the dry fire training device shown in Fig. 1.
[9034] Fig. .14 is a side view of the second outer case half shown in Fig. 13.
[0035] Fig. 15 is a from view of the second outer case half shown in Fig. 13.
[0036] Fig. 16 is a bottom view of the second outer case half shown in Fig. 13.
[0037] Fig. 17 is a reverse side view' of the second outer case half shown in Fig. 13.
[0030] Fig. 18 is a perspective view of a lever of the dry fire training device shown inFig. 1.
[0039] Fig. 19 is a side view of the lever shown in Fig. 18.
[0040] Fig. 20 is a front view of the lever shown in Fig. 18
[0041] Fig. 21 is a bottom view of the lever shown in Fig. 18.
[0042] Fig. 22 is a reverse side view of the lever shown in Fig. 18.[00431 Fig. 23 is a perspective view of a lever head of the dry fire training device shown inFig. 1.
[0844] Fig. 24 is a side view of the lever head shown in Fig. 23.[00451 Fig. 25 is a top view of the lever head shown in Fig. 23.[00461 Fig. 26 is a front view of the lever head shown in Fig. 23.
[0047] Fig. 27 is a bottom view of the lever head shown, in Fig. 23.[0048[ Fig. 28 is a reverse side view of the lever head shown in Fig. 23.Fig. 29 is a perspective view of a plunger of the dry fire training device shown inFig. 1[0]50] Fig. 30 is a side view of the plunger shown in Fig. 29.[0051 [ Fig. 31 is a front view of the plunger shown in Fig. 29.[8052 [ Fig. 32 is a reverse side view of the plunger shown in Fig. 29[0O53[ Fig. 33 is a bottom view of the plunger shown in Fig. 29.[0854| Fig. 34 is a cutaway side view of the dry fire training device shown in Fig. 1, w ith the plunger and lever assembly in a spring biased first position.Fig. 35 is a cutaway side view of the dry fire training device shown in Fig. 1, with the plunger and lever assembly partway between the spring biased first position and a second position.
[0056] Fig. 36 is a cutaway side view of the dry fire training device shown in Fig. 1 , with the plunger and lever assembly partway between the spring biased first position and a second position, and closer to the second position than that which is shown in Fig. 35.
[0057] Fig. .37 is a cutaway side view of the dry fire training device shown in Fig. 1 , with the plunger and lever assembly in the second position.
[0058] Fig. 38 is a side view of yet another embodiment of the dry fire training device, with the plunger and lever assembly in the spring biased first position.
[0059] Fig. 39 is a side view of the dry fire training device shown in Fig. 38, with the plunger and lever assembly partway between the spring biased first position and a second position.
[0060] Fig. 40 is a side view of the dry fire training device shown in Fig. 38, with the plunger and lever assembly partway between the spring biased first position and a second position, and closer to the second position than that which is shown in Fig. 39.[006l] Fig. 41 is a side view of the dry fire training device shown in Fig. 38, with the plunger and lever assembly in the second position.
[0062] Fig. 42 is a side view of yet another embodiment of the dry fire training device.
[0063] Fig. 43 is a front view of the dry' fire training device shown in Fig. 42.
[0064] Fig. 44 is a reverse side view of the dry fire training device shown in Fig. 42.
[0065] Fig. 45 is a perspective view of a plunger of the dry fire training device shown inFig. 42.
[0066] Fig. 46 is a top view of the plunger of the dry fire training device shown in Fig. 42.
[0067] Fig. 47 is a side view of the plunger of the diy fire training device shown in Fig. 42.
[0068] Fig. 48 is a front view of the plunger of the dry fire training device shown in Fig. 42..
[0069] Fig. 49 is a bottom view of the plunger of the dry fire training device shown in Fig. 42.
[0070] Fig. 50 is a cross-sectional side view’ of the dry fire training device shown in Fig. 42, showing the plunger in the extended position and the lever head in the retracted position.Fig. 51 is a cross-sectional side view of the dry fire training device shown in Fig. 42, showing the plunger partway between the extended position and the retracted position, and the lever head partway between the retracted position and the protruding position.
[0072] Fig. 52 is a cross-sectional side view of the dry fire training device shown in Fig. 42, showing the plunger in the retracted position and the lever head in the protruding position.
[0073] Fig. 5'3 is a front cross-sectional view of the dry fire training device shown in Fig. 42, showing the plunger in the retracted position, similar to that shown in Fig. 52.[0074| Fig. 54 is a front cross-sectional view of the dry fire training device shown in Fig. 42, showing the plunger in the extended position, similar to that shown in Fig. 50.DETAILED DESCRIPTION
[0075] As required, one or more embodiments ) are disclosed herein and described in detail; however, it is to be understood that the disclosed embodiment! s) are merely examples, which may be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present concept in virtually any appropriately detailed structure.
[0076] Referring to the embodiment shown in Fig. 1, a dry fire training device 10 is designed for use with a fully functional firearm (not shown) having a trigger mechanism (not shown). The dry fire training device 10 includes a rigid outer case comprised of two opposing sides 101 and102. Figs. 4, 5, 6, and 7 show various different exterior views of the dry fire training device 10 shown in Fig. 1.
[0077] The rigid outer case is sized, shaped, and configured to engage with the ammunition magazine compartment or well of the firearm. In some embodiments (not shown), the outer caseis designed to engage with a Glock 43x or Glock 48. In other words, the training device 10 is configured to be substantially interchangeable with a standard 10-round 9 mm ammunition magazine for a Glock 43x or Glock 48. In some other embodiments (not shown), the outer case is designed, to engage with a Glock G17 or Glock 40. In some other embodiments (not shown), the outer case is designed to engage with a Smith & Wesson M&P. In some other embodiments (not shown), the outer case is designed to engage with a Sig Sauer P320. In some other embodiments, the outer case is designed to engage with a Sig Sauer P365. In some other embodiments, the outer case is designed to engage with a H&K. VP9. In some other embodiments (not shown), the outer case is designed to engage with a Springfield Armory XD. The dry fire training device 10 of . Figs.1-37 is sized and shaped to engage with a Sig Sauer P365. The dry fire training device 10 of Figs.38-41 is sized and shaped to engaged with a H&K VP9. The dry fire training device 10 of Figs.42-54 is sized and shaped to engaged with a Glock 17 or Glock 19 or similar. Although the embodiments shown in the accompanying figures are shown to be compatible with various different popular firearms, persons having ordinary skill in the art will appreciate that the outer case, lever, lever bead, plunger, and / or other components can be designed and easily adaptable to be compatible w ith virtually any firearm with an ammunition magazine compartment.
[0078] Referring to Fig. 1 , within the outer case is a lever 104. The lever 104 is configured to pivot between two positions - a first position and a second position. The lever 104 is biased in the first position. The lever 104 includes a lever head 120. The lever head 120 is sized and shaped such that when the rigid outer case is fully inserted into the magazine well of the firearm, at least a portion of the lever head 120 protrudes outwardly from the exterior surface of the rigid outer case and positions the lever assembly behind the trigger mechanism and in the first position. In some embodiments, such as that which is shown in Figs. 42-54, the lever head 120 is configuredto be non-moveable or fixed, relative to the lever 104. In some other embodiments, such as that shown in Figs. 1-37 and 38-41, the lever head 120 is attached to the lever 104 via a pivot point.The lever head 120 articulates on the pivot point between a protruding position and a retracted position and is biased in its protruding position. In some embodiments, the lever head 120 includes a pivot point configured such that the lever head 120 moves relative to the lever 104 when the lever head 120 articulates between the protruding position and the retracted position. In some embodiments, a lever head spring 121 connects the lever head 120 to the lever 104 and biases the lever head 120 in its protruding position. When the trigger mechanism is pulled the trigger mechanism pushes the lever 104 into the second position. When the trigger mechanism is released, the lever 104 returns to its first position and pushes or follows the trigger mechanism back to its original position, ready to dry' fire again.
[0079] In the embodiment shown in Fig. 1, the lever head 120 has a protrusion that extends through an orifice in the front portion of the rigid outer case. When the training device 10 is inserted into the magazine well of the firearm, the extending protrusion of the lever head 120 frictionally engages with a surface of the firearm magazine well so as to properly position the top end portion of the lever 104 or lever head 120 relative to the firearm trigger mechanism for operation.
[0081] In some embodiments, the lever head 120 is configured to be movable between a retracted position and. a protruding position. In the retracted position, the lever head 120 is positioned at least partially within the rigid outer case. In some embodiments, in the retracted position, the lever head 120 is positioned entirely within the rigid outer case. In the protruding position, at least a portion of the lever head 120 protrudes outside the rigid outer case. When the dry fire training device 10 is fully inserted into the ammunition magazine compartment of thefirearm, the lever 104 is in the first position and the lever head 120 is in the protruding position and the protruding portion of the lever head 120 is positioned behind the trigger mechanism such that when the trigger mechanism is actuated, the lever 104 is moved from the first position to the second position. When the trigger mechanism is released, the sever 104 is moved from the second position to the first position. When the dry fire training device 10 is not fully inserted into the ammunition magazine compartment of the firearm, the lever head 120 is in the retracted position.
[0081] As showm in Fig. 1, within the outer case (101 and 102) is a detent reed 111 connected to the lever 104. The detent reed 11.1 provides tactile and audible feedback every time the trigger mechanism is pulled and the lever 104 is pivoted between positions, in some embodiments, the detent reed 111 is lodged against the ulterior surface of the outer case. In some other embodiments, the detent reed 111 rests against a regulating set screw 109. In some embodiments, the detent reed111 is configured to bias the lever 104 in the first position.100821 In some embodiments, such as that shown in Fig. 1, the device 10 includes a compression spring 110 functionally situated between the lever 104 and the outer case (101 and102 ) to bias the lever 104 in the first position. In some embodiments (not shown), the detent reed111 is functionally situated between the lever 104 and the outer case to bias the lever 104 in the first position. In some embodiments (not shown), the device 10 does not include the compression spring 1 10.I0083| Still referring to Fig. 1 , the outer case of the dry fire training device 10 is formed when opposing sides 101 and 102 are connected to one another using screws or adhesive. The outer case has a top end portion, a bottom end portion, a front portion, a back portion, two opposing side portions, an exterior surface and an interior cavity. The interior cavity' of the outer case has inside surfaces at the top end portion, the bottom end portion, the front portion, the back portion, and thetwo opposing side portions 101 and 102. The outer case also has a platform at the inside top end portion for engagement with the compression spring 110.Figs. 4, 5, 6, and 7 show various different exterior views of the dry fire training device10 shown in Fig. 1. Fig. 4 is a perspective view of the dry fire training device 10 shown in Fig. 1.Fig. 5 is a side view of the dry fire training device 10 shown in Fig. 1 . Fig. 6 is a bottom view of the dry fire training device 10 shown in Fig. 1. Fig. 7 is a front view' of the dry fire training device10 shown in Fig. 1.
[0085] Figs. 8, 9, 10, 1 1 , and 12 show various different views of one of the two opposing sides or outer casing half 102 of the dry fire training device 10 shown in Fig. 1. Fig. 8 is a perspective view of the first outer case half 102 of the dry fire training device 10 shown in Fig. I. Fig. 9 is a side view of the first outer case half 102 shown in Fig. 8. Fig. 10 is a front view of the first outer case half 102 shown in Fig. 8. Fig. 11 is a bottom view of the first outer case half 102 shown inFig. 8. Fig. 12 is a reverse side view' of the first outer case half 102 shown in Fig. 8
[0086] Figs. 13, 14, 15, 16, and 17 show various different views of the other of the two opposing sides or outer casing half 101 of the dry fire training device 10 shown in Fig. 1. Fig. 13 is a perspective view' of the second outer case half 101 of the dry fire training device 10 shown inFig. 1. Fig. 14 is a side view' of the second outer case half 101 shown in Fig. 13. Fig. 15 is a front view' of the second outer case half 101 shown in Fig. 13. Fig. 16 is a bottom view' of the second outer case half 101 shown in Fig. 13. Fig. 17 is a reverse side view of the second outer case half101 shown in Fig. 13.
[0087] Returning to Fig. I , the lever 104 is pivotably carried within the interior cavity of the rigid outer case. The lever 104 is elongate and has a bottom end portion that is proximate the inside bottom surface of the interior cavity of the outer case. The lever 104 also has a top end portion thatis proximate the top end portion of the rigid outer case. Depending on the structure of the specific firearm, either the sever head 120 or the lever 104 includes a projection sized and shaped to engage with the trigger mechanism of the firearm. In some embodiments, such as that shown in Figs. 1-3 and 18-22, the lever 104 also includes a projection for engagement with the compression spring110. The lever 104 pivots on a fulcrum within the outer case, preferably connected between the two opposing side portions 101 and 102.
[0088] As shewn in Fig. 1, the dry fire device 10 also includes a plunger 116 and a plunger spring 118 attached to the plunger 116. The plunger 116 is configured to be movable between a retracted position and an extended position. In the retracted position, the plunger 116 is positioned at least partially within the rigid outer case. In some embodiments, the plunger 116 is positioned entirely within the rigid outer case, hi the extended position, at least an end portion of the plunger116 extends outside the rigid outer case. When the dry fire training device 10 is fully inserted into the ammunition magazine compartment of the firearm, the end portion of the plunger 1.1.6 frictionally engages with the magazine compartment of the firearm to move the plunger 1 16 from the extended position to the retracted position. The plunger 116 is biased in the extended position when the dry fire training device 10 is not folly inserted into the ammunition magazine compartment of the firearm
[0089] The plunger 116 and the lever head 120 are interconnected such that when the plunger116 is moved from the extended position to the retracted position, the lever head 120 correspondingly moves from the retracted position to the protruding position. When the plunger116 is moved from the retracted position to the extended position, the lever head 120 correspondingly moves from the protruding position to the retracted position. The plunger spring118 biases the plunger 116 to the extended position. The plunger 116 is sized and shaped to engagewith the interior surface of the magazine well of the firearm, or other similar structure, when the dry fire training device 10 is inserted within the magazine well.
[0090] Still referring to Fig. 1, the detent reed 111 is connected to the lever 104 at one end and adjacent the inside back surface of the rigid outer case at the other end. The detent reed 111 is formed of a material that generates a tactile and audible signal when manipulated through an activation point between an un-tripped position and a tripped position. In some embodiments, the end of the detent reed 111 opposite the lever 104 rests against a regulating set screw 109. The regulating set .screw .109 operatively communicates with the detent reed 111 to provide adjustability to the activation point of the detent reed I I I . This makes the tactile and audible feedback of the detent reed 111 adjustable. The detent reed 111 is configured to interact with the lever to provide audible and tactile feedback when the lever is moved from the first position to the second position. In some embodiments, the detent reed 111 is configured, to bias the lever 104 in the first position.
[0091] In some embodiments, such as that shown in Fig. 1, the training device 10 also includes a microprocessor on a printed circuit board 105 within and connected to the outer case. The microprocessor is connected to a microswitch that is activated when the lever 104 is actuated from the first position to the second position. The microprocessor sends a signal when the microswitch is activated. In some embodiments, such as that shown in Fig. 1, the signal activates an LED 108.The microprocessor and the L ED 108 are powered by a battery 106 located within the rigid outer case. In some embodiments (not shown), the signal sent by the microprocessor when the microswitch is activated is infrared. In some embodiments (not shown), the signal sent by the microprocessor when the microswitch is activated is Bluetooth. In some embodiments (not shewn), the signal sent by the microprocessor when the microswitch is activated is sound. In someembodiments (not shown), the signal sent by the microprocessor when the microswitch is activated is vibration. Persons having ordinary skill in the art will appreciate that the configuration of the microswitch, the microprocessor, and the lever 104 can be arranged in many different configurations functional to send a signal when the lever 104 is actuated from the first position to the second position. In some embodiments, the microprocessor is configured to send a signal depending on the position or state of the lever 104. In some embodiments, the microprocessor is configured to send a signal depending on the position or state of the detent reed 111.
[0092] In some embodiments, such as that which is shown in Fig. 1 , the training device 10 also includes one or more weight 112 such that the total weight of the training device 10 more closely approximates the weight of a magazine filled with live ammunition, to give the device 10 a more realistic feel.
[0093] In some embodiments, such as that which is shown in Fig. 1 , the training device 10 also includes an attachment interface 130 configured to engage with a firearm accessories mounting platform, such as (but not limited to) the Picatinny rail system. Persons having ordinary skill in the an will appreciate that the attachment interface 130 can be designed to engage with virtually any firearm accessories mounting platform. In some embodiments, such as that which is shown in Fig.L the attachment interface 130 is configured such that the attachment interface 130 is temporarily removable from the outer case. In some embodiments (not shown), the attachment interface 130 is integrally formed as part of the outer case. In some embodiments, such as that which is shown inFigs. 38-54, the training device 10 does not include an attachment interface 130.
[0094] In Fig. 2, an embodiment of the dry fire training device 10 is shown. The embodiment shown in Fig. 2 is similar to that shown in Fig. 1 , but does not include the printed circuit board105, battery' 106, or LED 108 because these are optional features. Other embodiments (not shown)orn.it other optional features such as the compression spring 1 10, the attachment interface 130, the weights 112, or the adjustment set screw 109.
[0095] Referring to Fig. 1, the lever head 120 pivotally connected to the lever 104 and the detent reed 111 comprise a lever assembly. The lever assembly of Fig. 1 is shown in greater detail at Fig. 3. Fig. 3 is an exploded perspective view of the lever assembly of the dry fire training device10 shown in Fig. 1 .
[0096] Referring to Fig. 3, the lever assembly of the embodiment of Fig. 1 is shown. The detent reed 111 is attached to the lever 104. The lever head 120 is attached to the lever 104 at a fulcrum via pin 122. Lever head spring 12.1 is connected to the lever head 120 at one end and the lever 104 at the opposite end. In some embodiments, such as that shown in Fig. 3, the lever head is configured to articulate between a retracted position and a deployed position. The lever head spring 121 biases the lever head 120 in the retracted position. The lever head assembly shown in Fig. 3 also includes a microswitch activation screw 123. The microswitch activation screw 123 operably connects the lever 104 to the microswitch (not shown) to send a signal when the lever 104 is pivoted to the second position.
[0097] Figs. 18, 19, 20, 21, and 22 show various different views of the le ver 104 of the dry fire training device 10 shown in Fig. 1. Fig. 18 is a perspective view of the lever 104 of the dry fire training device 10 shown in Fig. 1. Fig. 19 is a side view of the lever 104 shown in Fig. 18.Fig. 20 is a front view of the lever 104 shown in Fig. 18. Fig. 21 is a bottom view of the lever 104 shown in Fig. 18. Fig. 22 is a reverse side view of the lever 104 shown in Fig. 18.
[0098] Figs. 23, 24, 25, 26, 27, and 28 show various different views of the lever head 120 of the dry fire training device 10 shown in Fig. 1. Fig. 23 is a perspective view of the lever head 120 of the dry fire training device 10 shown in Fig. 1. Fig. 24 is a side view of the lever head. 120shown in Fig. 23. Fig. 25 is a top view- of the lever head 120 shown in Fig. 23. Fig. 26 is a front view of the lever head 120 shown in Fig. 23. Fig. 27 is a bottom view of the lever head 120 shown in Fig. 23. Fig. 28 is a reverse side view of the lever head 120 shown in Fig. 23.
[0099] Figs. 29, 30, 31, 32, and 33 show various different, views of the plunger 116 of the dryfire training device 10 shown in Fig. 1. Fig. 29 is a perspective view of the plunger 116 of the dry fire training device 10 shown in Fig. 1. Fig. 30 is a side view of a plunger 116 shown in Fig. 29.Fig. 31 is a front view of the plunger 116 shown in Fig. 29. Fig. 32 is a reverse side view of the plunger 116 shown in Fig. 29. Fig. 33 is a bottom view of the plunger 116 shown in Fig. 29.
[0100] Figs. 34, .35, 36, and 37 show cutaway side views of the dry fire training device 10 ofFig. 1 in various stages of articulation of the lever head 120 and corresponding actuation of the plunger 116. The lever head 120 and plunger 116 are sized and shaped to engage with each other such that the articulating movement of the le ver head 120 corresponds to actuation movement of the plunger 116. As shown in Fig. 34, the plunger 116 is spring biased in its extended position, which corresponds to the lever head 120 being pulled to its retracted position. In this retracted position, the lever head 120 does not frictionally engage with the outer surface of the magazine well of the fireann and the dry- fire training device 10 will drop fi.ee of the magazine well with minimal gravity assistance. As shown in Fig. 35, as the dry fire naming device 10 is inserted into the magazine well of the fireann to the point where the plunger 116 first begins to engaged, or if the plunger 116 is manually engaged outside of the magazine well of the firearm, the plunger 116 begins to actuate away from the extended position and toward the retracted position. This also corresponds to the lever head 120 beginning to articulate away from the retracted position and toward the protruding position. As shown in Fig. 36, as tire dry fire training device 10 is inserted further into the magazine well of the firearm, or if the plunger 116 is manually engaged outside ofthe magazine well, the plunger 1 16 continues to actuate further away from the extended position and toward the retracted position. This corresponds to the lever head 120 being farther articulated away from the retracted position and toward the protruding position. As shown in Fig. 37, when the dry fire training device 10 is fully inserted into the magazine well, or if the plunger 116 is manually engaged outside of the magazine well, the plunger 116 becomes fully actuated to the retracted position. This corresponds to the lever head 120 being folly articulated to the protruding position.
[0101] In most firearms, a retaining catch holds the magazine in place when it is fully inserted into the magazine well. The dry fire training device 10 is configured such that the firearm’s retaining catch will also hold the dry fire training device 10 in place when it is folly inserted into the magazine well. When the retaining catch is released, the dry fire training device 10 of the present invention will drop free just like a live fire magazine will drop free from the magazine well.
[0102] Figs. 38-41 show yet another embodiment of the dry fire training device 10. The embodiment shown in Figs. 38-41 is sized and shaped to engaged with a H&K VP9. Figs. 38-41 show the dry fire training device 10 in various stages of articulation of the lever head 120 and corresponding actuation of the plunger 116. In the embodiment shown in Figs. 38-41, the lever head 120 and plunger 116 are sized and shaped to engage with each other such that the articulating movement of the lever head 120 corresponds to actuation movement of the plunger 116. As shown in Fig. 38, the plunger 116 is spring biased in its extended position, which corresponds to the lever head 120 being pulled to its retracted position. In this retracted position, the lever head 120 does not frictionally engage with the outer surface of the magazine well of the firearm and the dry fire training device 10 will drop free of the magazine well with minimal gravity assistance. As shownin Fig. 39, as the dry fire training device 10 is inserted into the magazine well of the firearm to the point where the plunger 116 first begins to engaged, or if the plunger 116 is manually engaged outside of the magazine well of the firearm, the plunger 116 begins to actuate away from the extended position and toward the retracted position. This also corresponds to the lever head 120 beginning to articulate away from the retracted position and toward the protruding position. As shown in Fig. 40, as the dry fire training device 10 is inserted further into the magazine well of the firearm, or if the plunger 116 is manually engaged outside of the magazine well, the plunger 116 continues to actuate further away from the extended position and toward the retracted position.This corresponds to the lever head 120 being further articulated away from the retracted position and toward the protruding position. As shown in Fig. 41, when the dry fire training device 10 is fully inserted into the magazine well, or if the plunger 116 is manually engaged outside of the magazine well, the plunger 116 becomes fully actuated to the retracted position. This corresponds to the lever head 120 being fully articulated to the protruding position.
[0103] In some embodiments, such as that which is shown at Figs. 42-54, the lever head 120 does not need to articulate because the movement of the lever 104 is sufficient to retract the protrusion of the lever head 120 to avoid frictional engagement with the magazine well. Fig. 42 is a side view of another embodiment of the dry fire training device 10. Fig. 43 is a front view of the dry fire training device 10 shown in Fig. 42. Fig. 44 is a reverse side view of the dry fire training device 10 shown in Fig. 42.[00104) Fig. 45 is a perspective view of a plunger 116 of the dry fire training device 10 shown in Fig. 42. Fig. 46 is a top view of the plunger 1 16 of the dry fire training device 10 shown in Fig.42. Fig. 47 is a side view of the plunger 116 of the dry fire training device 10 shown in Fig. 42.Fig. 48 is a front view of the plunger 1 16 of the dry fire training device 10 shown in Fig. 42. Fig.49 is a bottom view of the plunger 116 of the dry fire training device 10 shown in Fig. 42
[0105] Fig. 50 is a cross-sectional side view of the dry fire training device 10 shown in Fig.42. As shown in Fig. 50, the plunger 116 is in the extended position and the lever head 120 is in the retracted position. Fig. 51 is a cross-sectional side view of the dry fire training device 10 shown in Fig. 42. As shown in Fig. 51 , the plunger 116 is partway between the extended position and the retracted position, and the lever head 120 is partway between the retracted position and the protruding position. Fig. 52 is a cross-sectional side view of the dry fire training device 10 shown in Fig. 42. As shown in Fig. 52, the plunger 116 is in the retracted position and the lever head 120 is in the protruding position.
[0106] Fig. 53 is a front cross-sectional view of the dry fire training device 10 shown in Fig.42. As shown in Fig. 53, the plunger 116 is in the retracted position, similar to that shown in Fig.52. Fig. 54 is a front cross-sectional view of the dry fire training device 10 shown in Fig. 42. .As shown in Fig. 54, the plunger 116 is in the extended position, similar to that shown in Fig. 50.
[0107] The embodiment shown in Figs. 42-54 is sized and shaped to engaged with a Glock 17 or Glock 19 or similar. Although not shown in the drawings, persons of ordinary skill in the art will readily appreciate that the present invention can be easily modified to be compatible with theSig Sauer 320, Glock 43x, Glock 48, and many other firearms. Persons having ordinary skill in the art will readily appreciate how the present inventive concept can be incorporated with that which is disclosed at U.S. Pat. Nos. 9,182,189 and 11 ,460,271 and U.S. provisional patent application serial number 63 / 456,279 and international PCT patent application number PCT / US2024 / 021924.Operation
[0108] The operation of the described embodiment] s) of the presen t concept is believed to be readily apparent, and is briefly summarized at this point.
[0109] In operation, the dry fire training device 10 according to that which is described herein is manufactured by providing the rigid outer case sides 101 and 102. Within one side of the outer case (either 101 or 102) the lever 104 is situated such that it can pivot between two positions - a first position and a second position. The lever 104 is biased in the first position. The lever head120 is attached to the lever 104, either fixedly or via the pivot pin 122. A head spring 121 connects the lever head 120 to the lever 104 and biases the lever head 120 in its protruding position. The detent reed 1 11 is operably connected io the lever 104. The whole lever assembly, comprising the lever 104, lever head 120, and detent reed I 11, are situated within the outer case such that when the device 10 is fully assembled and fully inserted into the magazine well of the firearm, the lever104- or lever head 120 frictionally engages with the interior surface of the magazine well and positions the lever 104 behind the trigger mechanism and in the first position. When the trigger is pulled, the trigger mechanism pushes the lever 104 into the second position. And when the trigger mechanism is released, the lever 104 returns to its first position and pushes or follows the trigger mechanism back to its original position, ready to fire again.
[0110] In some embodiments, the microprocessor, PC board 105 and microswitch are placed within the outer case. In some embodiments, the battery 106 and LED 108 are placed within the outer case and functionally connected to the microprocessor and microswitch. The two sides of the outer case 101 and 102 are connected to one another. The compression spring 1 10 is functionally situated between the lever 104 and the outer case to bias the lever 104 m the first position.Adjustment screw 123 and set screw 109 are adjusted for optimal performance for a specific firearm, in accordance with the description of the device provided herein.
[0111] In use, a training device 10 according to that which is described herein is provided. The training device 10 is inserted into the magazine well of a fully functional firearm. When the dry' fire training device 10 is fully inserted into the magazine well, the plunger 116 engages with the interior surface of the magazine well and actuates to its retracted position. The actuation of the plunger 116 also articulates the lever head 120 to its protruding position and positions the lever104 behind the trigger mechanism and in the first position and the trigger mechanism is ready to be actuated or fired. When the trigger mechanism is actuated, the lever 104 pivots to the second position and the detent reed 111 is activated. In those embodiments with the microswitch and microprocessor, the microprocessor generates a signal when the lever 104 pivots to the second position. In those embodiments with the microswitch, microprocessor, and LED 108, the L ED 108 is activated when the lever 104 pivots to the second position. When the trigger mechanism is released, the lever 104 returns to its first position and resets the trigger mechanism to its original position, ready to fire again. When the user wants to practice changing magazines, the magazine retaining catch is released, the plunger spring 118 biases the plunger 116 back to its extended position, which articulates the lever head 120 to its retracted position, and the dry fire training device 10 drops free of the magazine well of the fully functional firearm with minimal gravity assistance. Another (or the same) dry fire training device 10 can then be inserted into the magazine well, thus simulating the action of removing an. empty live fire magazine and replacing with a fully loaded live fire magazine. After the dry fire training device 10 is removed from the magazine well. the firearm can be used with a live ammunition magazine without any reconfiguration.[001 12] In the foregoing description, certain terms have been used for brevity, clearness and understanding; but no unnecessary limitations are to be implied therefrom beyond the requirements of the prior art, because such terms are used for descriptive purposes and are intended to be broadly construed. Moreover, the description and. illustration of the inventive concept is by way of example, and the scope of the invention is not limited to the exact details shown or described.
[0113] Although the foregoing detailed description of the present inventive concept has been described by reference to one or more exemplary embodiments), and the best mode contemplated for carrying out the present invention has been shown and described, it will be understood that. certain changes, modification or variations may be made in embodying the present inventive concept, and in the construction thereof, other than those specifically set forth herein, may be achieved by those skilled in the art without departing from the spirit and scope of the invention, and that such changes, .modification or variations are to be considered as being within the overall scope of the present invention. Therefore, it is contemplated to cover the present invention and any and all changes, modifications, variations, or equivalents that fall with in the true spirit and scope of the underlying principles disclosed and claimed herein. Consequently, the scope of the present invention is intended to be limited only by the accompanying claims, all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
[0114] Having now described the features, discoveries and principles of the present inventive concept, the manner in which it is constructed and used, the characteristics of the construction, and advantageous, new and useful results obtained; the new' and useful structures, devices, elements. arrangements, parts and combinations, are set forth in the appended claims.
[0115] It is also to be understood that the following claims are intended to cover all of the generic and specific features of the inventive concept herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
[0116] Finally, it will be appreciated, that the purpose of the accompanying Abstract is to enable the patent offices and the public generally, and especially the scientists, engineers and practitioners in the art who are not familiar with patent or legal terms or phraseology, to determine quickly from a cursory' inspection the nature and essence of the technical disclosure of the application . Accordingly, the Abstract is neither intended to define the invention or the application. which only is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.
Claims
CLAIMSWhat is claimed is:I A. dry fire training device, for use with a folly functional firearm with a trigger mechanism, the device comprising: a rigid outer case, shaped and configured to operatively cooperate with an ammunition magazine compartment of the firearm.; a lever positioned at least partially within the rigid outer case and configured to be moveable between a first position and a second position and biased in the first position, the lever having a first end and a second end opposite the first end, the lever having a pivot point at the first end and the lever having a lever head at the second end opposite the first end; the lever head is configured to be movable between a retracted position, at which the lever head is positioned at least partially within the rigid outer case, and a protruding position, at which at least a portion of the lever head protrudes outside the rigid outer case, and when the dry fire training device is fully inserted into the ammunition magazine compartment of the firearm, the lever is in the first position and the lever head is in the protruding position and the protruding portion of the lever head is positioned behind the trigger mechanism such that when the trigger mechanism is actuated, the lever is moved from the first position to the second position and when the trigger mechanism is released. the lever is moved from the second position to the first position, and when the dry fire training device is not &Hy inserted into tire ammunition magazine compartment of the firearm, the lever head is in the retracted position; a plunger positioned at least partially within the rigid outer case and configured to be movable between a retracted position, at which the plunger is positioned at least partially withinthe rigid outer case, and an extended position, at which at least an end portion of the plunger extends outside the rigid outer case, and when the dry fire training device is fully inserted into the ammunition magazine compartment of the firearm, the end portion of the plunger frictionally engages with the magazine compartment of the firearm to move the plunger from the extended position to the retracted position, and the plunger is biased in the extended position when the dry fire training device is not fully inserted into the ammunition magazine compartment of the firearm, the plunger and the lever head are interconnected such that when the plunger is moved from the extended position to the retracted position, the lever head correspondingly moves from the retracted position to the protruding position and when the plunger is moved from the retracted position to the extended position, the lever head correspondingly moves from the protruding position to the retracted position; and. a detent reed positioned within the rigid outer case between the rigid outer case and the lever and configured to interact with the lever to provide audible and tactile feedback when the lever is moved from the first position to the second position.
2. The dry' fire training device as claimed in claim 1, further comprising: a compression spring positioned between the lever and the rigid outer case and configured to bias the lever in the first position.
3. The dry lire training device as claimed in claim 1, wherein the lever head further includes a pivot point configured such that the lever head moves relative to the lever when the lever head articulates between the protruding position and the retracted position, and a lever head spring connects the lever head to the lever to bias the lever head in the protruding position.
4. The dry fire training device as claimed in claim 1 , further comprising: a plunger spring connected to the plunger to bias the plunger in the extended position.5 The dry fire training device as claimed in claim L wherein the detent reed is configured to bias the lever in the first position.
6. T he dry fire training device as claimed in claim 1, wherein when the lever head is in the retracted position, the lever head is positioned entirely within the rigid outer case.
7. The dry fire training device as claimed in claim 1, wherein when the plunger is in the retracted position, the plunger is positioned entirely within tire rigid outer case.
8. A method of manufacturing a dry fire training device, for use with a folly functional firearm with a trigger mechanism, the method comprising: providing a rigid outer case, shaped and configured to operatively cooperate with an ammunition magazine compartment of the firearm: positioning a lever at least partially within the rigid outer case, the lever is configured to be moveable between a first position and a second position, the lever having a first end and a second end opposite the first end, the lever having a pivot point at the first end and the lever having a lever head at the second end opposite the first end; the lever head is configured to be movable between a retracted position, at which the lever head is positioned at least partially within the rigid outer case, and a protruding position, at which at least a portion of the lever head protrudes outside the rigid outer case, and when the dry fire training device is fully inserted into the ammunition magazine compartment of the firearm, the lever is in the first position and the lever head is in tire protruding position and the protruding portion of the lever head is positioned behind thetrigger mechanism such that when the trigger mechanism is actuated, the lever is moved from the first position to the second position and when the trigger mechanism is released. the lever is moved from the second position to the first position, and when the dry fire training device is not folly inserted into the ammunition magazine compartment of the firearm, the lever head is in the retracted position; positioning a plunger at least partially within the rigid outer case, the plunger is configured to be movable between a retracted position, at which the plunger is positioned at least partially within the rigid outer case, and an extended position, at which at least an end portion of the plunger extends outside the rigid outer case, and when the dry fire training device is fully inserted into the ammunition magazine compartment of the firearm, the end portion of the plunger frictionally engages with the magazine compartment of the firearm to move the plunger from the extended position to the retracted position, and the plunger is biased in the extended position when the dry7fire training device is not folly inserted into the ammunition magazine compartment of the firearm, the plunger and the lever head, are interconnected such that when the plunger is moved from the extended position to the retracted position, the lever head correspondingly moves from the retracted position to the protruding position and when die plunger is moved from the retracted position to the extended position, the lever head correspondingly moves from the protruding position to the retracted position; and positioning a detent reed within the rigid outer case between the rigid outer case and the lever and configured to interact with the lever to provide audible and tactile feedback when the lever is moved from the first position to the second position.
9. The method as claimed in claim 8, further comprising:positioning a compression spring between the lever and the rigid outer case configured to bias the lever in the first position.
10. The method as claimed in claim 8, wherein the lever head further includes a pivot point configured such that the lever head moves relative to the lever when the lever head articulates between the protruding position and the retracted position, and a lever head spring connects the lever head to the lever to bias the lever head in the protruding position.
11. The method as claimed in claim 8, further comprising: connecting a plunger spring to the plunger to bias the plunger in the extended, position.
12. The method as claimed in claim 8, wherein the detent reed is configured to bias the lever in the first position.
13. A method of using a dry fire training device, the method comprising: providing a dry fire training device as claimed in claim 1; inserting the dry fire training device into the ammunition magazine compartment of the firearm: actuating the trigger mechanism of the firearm.
14. The method as claimed in claim 13, further comprising: removing the dry fire training device from the firearm.
Citation Information
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