A firearm using magazine as grip
By integrating the magazine as the grip and expanding its thickness to match the original grip's dimensions, the design addresses the capacity limitations of concealable handguns, achieving a staggered double-stack configuration and doubling the ammunition capacity.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- URAISIN PORNCHAI
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-25
AI Technical Summary
Concealable handguns face limitations in ammunition capacity due to grip space constraints, as they typically store cartridges in a single stack, limiting capacity to about 6 rounds, while standard handguns can achieve 10 rounds with a staggered double stack configuration.
The design integrates the magazine as the grip, eliminating the separate grip structure and expanding the magazine's thickness to match the original grip's thickness, allowing for a staggered double-stack cartridge arrangement without increasing the firearm's overall size.
This design increases ammunition capacity from 6 to 10 rounds by converting the magazine into a grip, maintaining the same overall thickness, thus enhancing the concealable handgun's cartridge storage without enlarging its dimensions.
Smart Images
Figure TH2025050025_25062026_PF_FP_ABST
Abstract
Description
[0001] A FIREARM USING MAGAZINE AS GRIP
[0002] Technical Field of the Invention
[0003] Engineering related to firearms using a magazine as a grip.
[0004] Background of the Invention
[0005] Currently, there is a growing demand for small, concealable handguns that can carry a large number of rounds. Firearm manufacturers worldwide are striving to design firearms that use high- stopping-power ammunition in the smallest possible size while maximizing the magazine capacity. However, regardless of how small the design becomes, the thickness of the grip material remains relatively large.
[0006] Semi-automatic or automatic handguns are firearms that store ammunition within a magazine. To feed cartridges into the chamber, the magazine is inserted from the bottom of the firearm’s grip. The total thickness of the grip, therefore, equals the thickness of the magazine plus the thickness of the material that forms the firearm’s frame, which encases the magazine.
[0007] Due to the constraints of small and thin concealable handguns, the magazine typically arranges the cartridges in a single stack, which generally results in a minimum capacity of about 6 rounds — examples of such firearms include those under the trademark “Glock 43.” In contrast, standard handguns have thicker magazines that allow for cartridges to be arranged in a staggered double stack or alternating configuration, resulting in a minimum capacity of about 1 0 rounds — examples include firearms under the trademark “Glock 26.”
[0008] The inventor has considered and compared the magazine of the Glock 26 with the grip of the Glock 43 and found that the thickness of the Glock 43 grip is equal to the thickness of the Glock 26 magazine. Therefore, if the Glock 43 grip is removed and a magazine with a thickness equal to the original grip is designed, it will result in a magazine with the same thickness as the Glock 26 magazine. This would allow the cartridges to be arranged in a double stack, thereby increasing the ammunition capacity while maintaining the same overall thickness of the firearm.
[0009] When considering the positioning of the magazine, starting from the bottom of the grip up through the firearm’ s frame and ending at the top opening of the magazine near the chamber where the first round is fed, it aligns with the area around the trigger guard, which contains the firearm’s operating mechanisms. Therefore, in the design where the grip is removed, it can be done from the bottom of the grip up to the position of the magazine release button. Beyond this point, the magazine maintains its thickness and continues to arrange the cartridges in a single stack up to the magazine’s opening.
[0010] The inventor has also considered and compared the magazine of a firearm under the trademark “B&T VP-9” and found that the magazine’s design does not increase the magazine’s thickness to match the thickness of the grip. Instead, the original magazine is encased in an additional material that forms the grip, with the resulting thickness equal to that of standard grips, which are designed for a secure and comfortable hold. It is evident that this encasing material contributes to the added thickness around the magazine.
[0011] In contrast, this invention involves removing the thickness of the firearm’s grip, which is equivalent to removing the thick encasing material around the magazine in the B&T VP-9 . This thickness, which is removed from the grip, is instead used to expand the thickness of the magazine itself. By increasing the magazine’s thickness to match the original grip’s thickness, the invention maximizes the space available for storing cartridges while maintaining the same overall thickness as the original grip.
[0012] In the Thai patent database and various international patent databases, inventions related to firearms using a magazine as a grip — similar to the invention described here — have been identified. These patents disclose firearms designed with the grip and magazine as a single integrated unit, and they are described as follows:
[0013] Referring to the patent filed through the World Intellectual Property Organization (WIPO) with publication number W02012092300A2, titled “Helical Ammunition Magazine,” it discloses a cylindrical-shaped magazine with a single-layer wall. Inside, cartridges are arranged radially, and a spring mechanism applies a circumferential force to feed the cartridges into the chamber.
[0014] Additionally, referencing the United States patent with publication number US 1462169 A, titled “Rifle,” it discloses a rifle with the magazine integrated into the firearm’s grip. Within the grip, a belt mechanism and a spring system are incorporated to feed the cartridges into the chamber for firing.
[0015] Additionally, referencing the United States patent with publication number US20170356710A1, titled “Folding Compact Pistol,” it discloses a small, portable firearm designed as a pistol with a folding grip mechanism. The grip functions to store and feed cartridges into the chamber, replacing the need for a separate magazine, as the grip and magazine are integrated into a single unit. This integration reduces the grip’s thickness for folding purposes, while also allowing the combined grip and magazine to be extended rearward for top-loading cartridges into the magazine.
[0016] A patent has also been identified that describes a firearm in which the magazine and grip are integrated into a single unit, with a single-layer wall. The details of this patent are as follows:
[0017] Referring to the United States patent with publication number US20 1 80 1 4943 8 Al , titled “Automatic Spent Magazine Ejection & Control Group,” it describes a rectangular-shaped magazine that stores cartridges in a double stack. It also includes a mechanism for automatically ejecting the magazine when all the cartridges inside have been depleted.
[0018] Furthermore, when considering inventions that discuss various magazine designs intended to increase the number of cartridges that can be stored, the following patents have been identified:
[0019] Referring to the United States patent with publication number US4982520A, titled “Semiautomatic Pistol Magazine,” it describes a rectangular-shaped magazine that extends beyond the grip’s bottom. The extended portion curves around to the back of the user’s right hand, increasing the magazine’s capacity for storing more cartridges while also improving the user’s grip and handling of the firearm.
[0020] Referring to the Thai patent application number 8 1 0 1 000 1 68 , titled “Disc-shaped Magazine for Firearm,” it describes a disc-shaped magazine that stores cartridges arranged perpendicularly to the magazine and along the circle’s radius, coiling in a spiral fashion to maximize the number of cartridges that can be stored.
[0021] It can be seen that the prior inventions have claimed components of firearms designed to integrate the grip and magazine into a single unit, as well as firearms in which the magazine and grip are combined into a single unit with a single-layer wall. These prior inventions also include various magazine designs to increase ammunition capacity, with similar intended purposes to this invention but with differences in their components. Therefore, in this invention, the inventor has designed a firearm that uses a magazine as a grip by removing the grip and expanding the thickness of the magazine to equal that of the original grip. This involves eliminating the thickness of the formed grip structure and applying grip textures directly onto the magazine, which now functions as the grip. This design eliminates the need for a separate grip in the firearm frame and increases the magazine’s thickness to match that of the original grip. As a result, when the user grips the firearm to shoot, they are actually gripping the magazine itself. Summary of the Invention
[0022] The firearm using a magazine as a grip comprises a frame, a magazine support section, a magazine release section, a magazine, a feed section, a grip, a locking slot, a cartridge chamber, cartridges, a slip-resistant section, and a cartridge feeding assembly. These components are assembled together. The frame includes a support section that accommodates the connection with the magazine’s feed section. This feed section is integrated with the grip, wherein the interior of the feed section and the grip houses the cartridge chamber equipped with the cartridge feeding assembly. On the exterior of the support section and grip, a slip-resistant section is installed. Additionally, the support section incorporates a release mechanism to enable secure assembly with the locking slot that engages between the support section and the feed section.
[0023] The objective of this invention is to address and resolve the limitations of concealed-carry handguns that are small and thin, which typically limit ammunition capacity due to the grip’s space constraints. This invention eliminates the grip portion and expands the thickness of the magazine to equal that of the original grip. This results in a thicker magazine that can shift from single-stack cartridge arrangement to a staggered double-stack configuration, thereby increasing the ammunition capacity while maintaining the same overall thickness of the firearm.
[0024] The increased magazine capacity in this invention is achieved by expanding the magazine’ s thickness to match, but not exceed, the original grip’s thickness. Both the length and the outward thickness of the magazine remain within the dimensions of the firearm that previously had a grip.
[0025] Brief Description of the Drawings
[0026] Figure 1 illustrates one embodiment of the structure and components of a firearm using a magazine as a grip.
[0027] Figure 2 illustrates another embodiment of the structure and components of a firearm using a magazine as a grip.
[0028] Figure 3 illustrates yet another embodiment of the structure and components of a firearm using a magazine as a grip.
[0029] Figure 4 illustrates one embodiment illustrating a single-stack magazine and a staggered double-stack magazine.
[0030] Figure 5 illustrates one embodiment of a design where the feed section is smaller than the gnp. Figure 6 illustrates one embodiment of a design featuring an internal groove in the firearm frame and a protrusion on the magazine.
[0031] Figure 7 illustrates another embodiment of a design featuring an internal groove in the firearm frame and a protrusion on the magazine.
[0032] Detailed Description of the Invention
[0033] Figures 1 to 3 show one embodiment of the structure and components of a firearm using a magazine as a grip. This invention relates to firearm components wherein the magazine functions as the grip. It comprises a firearm frame (1 ) that serves as the main structural support for integrating with the magazine (2), which holds the cartridges (3 ) . The firearm frame (1 ) is also configured to work with a trigger guard (1 1 ) at least at one position to protect against accidental firing in the event that a foreign object presses the trigger (12) and activates the firing mechanism. The trigger guard (11) is fitted with the trigger (12) positioned inside the guard.
[0034] The firearm frame (1) includes a magazine support section (13), which is equipped with a magazine release section (14) at one or more positions. The magazine support section (13 ) also features a contact surface (15) that serves as a guide surface. The magazine support section (13) is designed to securely receive and support the magazine (2 ) , which functions as both the cartridge holder and the grip. The magazine support section (13) is further fitted with a slip-resistant section (4), configured with texturing or patterns that cover the exterior surface to enhance friction when the user grips the magazine support section (13).
[0035] The magazine (2) comprises a feed section (21 ), a grip (22), a contact surface (23 ), a locking slot (24), and a cartridge chamber (25), all assembled together. The grip (22) forms the main structure, with the feed section (21) responsible for feeding cartridges into the chamber. The grip (22) and the feed section (21) include a contact surface (23) at the interface between the grip (22) and the feed section (21), which aligns and engages seamlessly with the contact surface (15) of the firearm frame. The grip (22) is also fitted with a slip-resistant section (4), configured with texturing or patterns that wrap around the exterior to enhance friction when the user grips the firearm.
[0036] The interior of the grip (22) and the feed section (21) houses the cartridge chamber (25), which is equipped with a cartridge feeding assembly (5) to accommodate at least one cartridge (3). The feed section (21 ) also includes a locking slot (24) at one or more positions, which engages with the magazine release section (14) to securely lock the magazine support section (13) and the feed section (21 ) of the magazine (2) together. Consequently, when removing the magazine (2) from the firearm frame (1), pressing or pushing the magazine release section (14) disengages the mechanism between the magazine release section (14) and the locking slot (24), allowing the magazine (2) to be removed from the firearm frame (1).
[0037] As shown in Figure 4, one embodiment illustrates a single-stack magazine and a staggered double-stack magazine. The cartridge chamber (2 5 ) within the grip (2 2 ) is designed to accommodate cartridges (3 ) in a staggered double-stack configuration, maximizing the use of space within the grip (22) by replacing the area that would normally be occupied by the firearm’s grip structure. Meanwhile, the cartridge chamber (25 ) of the feed section (21 ) is configured to accommodate cartridges (3 ) in a single-stack arrangement, following the standard magazine design.
[0038] The cartridge feeding assembly (5) comprises a spring (5 1 ) and a cartridge pusher (52), assembled together. The spring (5 1 ) is positioned at the bottom of the cartridge chamber (25 ) within the grip (22), and the cartridge pusher (52) is located between the spring (5 1 ) and the cartridges (3 ) . When cartridges (3 ) are loaded, they push down on the cartridge pusher (52), compressing the spring (51) until the cartridge chamber (25) is fully loaded. Conversely, when the spring (51) expands, it pushes the cartridge pusher (52), feeding the cartridges (3) into the chamber for firing.
[0039] As shown in Figure 5 , one embodiment illustrates a design in which the feed section (21 ) is smaller than the grip (22). The magazine (2) has the feed section (21) tapering from one end to the other until it meets the grip (22), forming a shape resembling a trapezoid. This increases the dimensions of the magazine (2) to allow it to fit snugly and securely within the magazine support section (13). In this embodiment shown in Figure 5, the magazine support section (13) includes two elongated sides shaped like a firearm’s grip, serving to protect the magazine (2) from being compressed by the shooter’s hand.
[0040] As shown in Figures 6 and 7, one embodiment illustrates a design featuring an internal groove in the firearm frame and a corresponding protrusion on the magazine. The magazine support section (13) includes at least one internal groove (16) for engaging with the protrusion (26), while the feed section (21) includes at least one protrusion (26) at a corresponding position for mating with the groove (16). In another embodiment, the feed section (21) and the grip (22) have at least one side-positioned protrusion (26). The protrusion (26) and the groove (16) can have triangular, rectangular, or rounded profiles. Additionally, the positioning of the protrusion (26) and the groove (16) can vary as shown in the figures, with designs that either maintain a consistent profile along the length or taper or expand towards the base of the grip (22). These design variations help ensure a snug and secure fit of the magazine (2) within the firearm frame (1), preventing the magazine (2) from shifting or moving once inserted. It is understood that any modifications or alterations may be apparent to and can be carried out by those skilled in the art. These modifications and alterations are considered to fall within the scope and intent of the present invention as defined by the accompanying claims.
[0041] Best Mode of the Invention
[0042] As previously described in the Detailed Description of the Invention section.
Claims
Claims1. A firearm using a magazine as a grip, comprising: a firearm frame (1 ) formed as a main structure that accommodates assembly with a magazine (2 ) , the magazine (2 ) being configured as a component for holding cartridges (3) in one arrangement; the firearm frame (1) including a magazine support section (13) fitted with a magazine release section (14) at one or more positions, the magazine support section (13 ) further comprising a contact surface (15) serving as a guide surface, and the magazine support section (13) designed to securely receive and support the magazine (2), which functions as both the cartridge holder and the grip; the magazine (2) comprising a feed section (21), a grip (22), a contact surface (23), a locking slot (24), and a cartridge chamber (25 ), all assembled together; the grip (22) formed as a main structure that includes the feed section (2 1 ) for feeding cartridges into the chamber, with the grip (22) and the feed section (21) including the contact surface (23) at the interface between them to engage seamlessly with the contact surface (15); the interior of the grip (22) and the feed section (21) housing the cartridge chamber (25), which is fitted with a cartridge feeding assembly (5) to hold at least one cartridge (3); and the feed section (2 1 ) including the locking slot (24) at one or more positions for assembly with the magazine release section (14), to lock the magazine support section (13) and the feed section (21) of the magazine (2) together.
2. The firearm using a magazine as a grip according to claim 1, wherein the firearm frame (1) is configured to integrate with a trigger guard (11) at one or more positions.
3. The firearm using a magazine as a grip according to claim 2, wherein the trigger guard (11) is provided with a trigger (12) positioned inside the trigger guard (11).
4. The firearm using a magazine as a grip according to claim 1, wherein the feed section (21) of the magazine (2) is smaller than the grip (22), with the feed section (21) tapering from one end to the other until it meets the end of the grip (22).
5. The firearm using a magazine as a grip according to claim 1, wherein the magazine support section (13) includes at least one internal groove (16) for accommodating engagement with a protrusion (26)6. The firearm using a magazine as a grip according to claim 1, wherein the feed section (21) is provided with at least one protrusion (26) at one or more positions for engaging with the groove (16).
7. The firearm using a magazine as a grip according to claim 1, wherein the feed section (21) and the grip (22) include at least one protrusion (26) at a side position.
8. The firearm using a magazine as a grip according to any one of claims 5 to 7, wherein the protrusion (26) and the groove (16) have a ridge shape in the form of a triangle, rectangle, or a rounded profile.
9. The firearm using a magazine as a grip according to claim 1, wherein the magazine support section (13) is fitted with a slip-resistant section (4) having texturing or patterns that wrap around the exterior surface.
10. The firearm using a magazine as a grip according to claim 1, wherein the grip (22) is fitted with a slip-resistant section (4) having texturing or patterns that wrap around the exterior surface.
11. The firearm using a magazine as a grip according to claim 1, wherein the cartridge chamber (25) of the grip (22) is configured to accommodate cartridges (3) in a staggered doublestack arrangement.
12. The firearm using a magazine as a grip according to claim 1, wherein the cartridge chamber (25) of the feed section (21) is configured to accommodate cartridges (3) in a single-stack arrangement.
13. The firearm using a magazine as a grip according to claim 1, wherein the cartridge feeding assembly (5) comprises a spring (51) and a cartridge pusher (52), assembled together.
14. The firearm using a magazine as a grip according to claim 13 , wherein the spring (5 1 ) is assembled at the bottom of the cartridge chamber (25) within the grip (22).
15. The firearm using a magazine as a grip according to claim 13, wherein the cartridge pusher (52) is positioned between the spring (51) and the cartridges (3) in one embodiment.