Firearm sound suppressor

Abstract

A suppressor for a firearm includes a housing and a closure mechanism. The housing includes a first end defining an exit opening. The closure mechanism is supported by the first end of the housing and includes a base and a plurality of fingers pivotably coupled to the base. The plurality of fingers is configured to move from an open position to a closed position upon passage of a projectile through the exit opening.

Description

Atorney Docket No. 49536-62FIREARM SOUND SUPPRESSORCROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 715,735 filed November 4, 2025, the entire disclosure of which is incorporated herein by reference.FIELD

[0002] The present disclosure relates to a sound suppressor for a firearm.BACKGROUND

[0003] This section provides background information related to the present disclosure and is not necessarily prior art.

[0004] Sound is generated by numerous sources when a firearm is discharged or otherwise fired. For example, high-temperature and high-pressure propellant gases escaping and expanding from the muzzle of the firearm can generate a shockwave that produces a loud muzzle blast. Sound suppressors are often used with firearms to slow or cool down the escaping propellant gas, thereby reducing the amount of noise (e.g., sound intensity or volume) generated when the firearm is discharged. Such suppressors often employ baffles, spacers, or packing material to affect the slowing or cooling down of the escaping propellant gas.

[0005] While known firearm sound suppressors have proven acceptable for their intended purposes, a continuous need for improvement in the relevant art remains.SUMMARY

[0006] This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

[0007] One aspect of the disclosure provides a suppressor for a firearm. The suppressor includes a housing and a closure mechanism. The housing includes a first end defining an exit opening. The closure mechanism is supported by the first end of the housing and includes a base and a plurality ofAtorney Docket No. 49536-62 fingers pivotably coupled to the base. The plurality of fingers is configured to move from an open position to a closed position upon passage of a projectile through the exit opening.

[0008] Another aspect of the disclosure provides a suppressor for a firearm. The suppressor includes a housing and a closure mechanism. The housing defines an exit opening. The closure mechanism is disposed within the housing and includes a base and a plurality of fingers pivotably coupled to the base. The plurality of fingers is configured to move from an open position to a closed position upon passage of a projectile through the exit opening.

[0009] The details of one or more implementations of the disclosure are set forth in the accompanying drawings and the description below. Other aspects, features, and advantages will be apparent from the description and drawings, and from the claims.BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are for illustrative purposes only of selected configurations and not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0011] FIG. 1 is a side view of a firearm including a sound suppressor in accordance with the principles of the present disclosure.

[0012] FIG. 2 is an exploded view of the sound suppressor of FIG. 1.

[0013] FIG. 3 A is a cross-sectional view of a portion of the sound suppressor of FIG. 1 taken through the line 1-1 showing a first embodiment of a closure mechanism in an open position in accordance with the principles of the present disclosure.

[0014] FIG. 3B is a cross-sectional view of a portion of the sound suppressor of FIG. 1 taken through the line 1-1 showing a first embodiment of a closure mechanism in a closed position in accordance with the principles of the present disclosure.

[0015] FIG. 4A is a cross-sectional view of a portion of the sound suppressor of FIG. 1 taken through the line 1-1 showing a second embodiment of a closure mechanism in an open position in accordance with the principles of the present disclosure.Atorney Docket No. 49536-62

[0016] FIG. 4B is a cross-sectional view of a portion of the sound suppressor of FIG. 1 taken through the line 1-1 showing a second embodiment of a closure mechanism in a closed position in accordance with the principles of the present disclosure.

[0017] FIG. 5 A is an end view of the sound suppressor of FIG. 1 showing a closure mechanism in an open position in accordance with the principles of the present disclosure.

[0018] FIG. 5B is an end view of the sound suppressor of FIG. 1 showing a closure mechanism in a closed position in accordance with the principles of the present disclosure.

[0019] Corresponding reference numerals indicate corresponding parts throughout the drawings.DETAILED DESCRIPTION

[0020] Example configurations will now be described more fully with reference to the accompanying drawings. Example configurations are provided so that this disclosure will be thorough, and will fully convey the scope of the disclosure to those of ordinary skill in the art. Specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of configurations of the present disclosure. It will be apparent to those of ordinary skill in the art that specific details need not be employed, that example configurations may be embodied in many different forms, and that the specific details and the example configurations should not be construed to limit the scope of the disclosure.

[0021] With reference to FIG. 1, a firearm system 10 is shown. The firearm system 10 may include a firearm 12 and a sound suppressor 14. While the firearm 12 is shown as being a pistoltype firearm, it will be appreciated that the firearm system 10 may include other types of firearms 12 within the scope of the present disclosure.

[0022] With reference to FIG. 2, the sound suppressor 14 may include a housing 16, an endcap 18, and a closure mechanism 20. The housing 16 may extend along a longitudinal axis Al and include a proximal end 22, a distal end 24, an inner surface 26, and an outer surface 28. The distal end 24 may be opposite the proximal end 22. The housing 16 may be formed from one or more of a variety of materials, including, for example, aluminum, steel, or another suitable metal material.

[0023] As illustrated in FIG. 2, the inner and outer surfaces 26, 28 may surround and extend along the longitudinal axis Al from the proximal end 22 to the distal end 24, such that the inner and outer surfaces 26, 28 define a thickness T1 extending therebetween in a direction substantiallyAtorney Docket No. 49536-62 perpendicular to the inner and outer surfaces 26, 28. Accordingly, the inner surface 26 may define a passage 30 extending through the housing 16 from the proximal end 22 to the distal end 24. The proximal end 22 of the housing 16 may define an entrance opening 32, while the distal end 24 of the housing 16 may define an exit opening 34. In this regard, the entrance opening 32 may be in fluid communication with the exit opening 34 through the passage 30.

[0024] In some implementations, the inner and outer surfaces 26, 28 each define a cylinder or a polygonal prism, such that the thickness T1 is uniform along and about the longitudinal axis Al. It will be appreciated, however, that the inner or outer surface 26, 28 may define other shapes within the scope of the present disclosure, such that the thickness T1 varies along or about the longitudinal axis Al.

[0025] In some implementations the outer surface 28 of the housing extends inwards towards the passage 30 at the exit opening 34. For example, the outer surface 28 may at least partially define the passage 30 and / or the exit opening 34.

[0026] In some implementations, the outer surface 28 includes a threaded portion 36 surrounding the entrance opening 32. In the assembled configuration (e.g., FIG. 1), the threaded portion 36 may secure the housing 16 to the endcap 18. In this regard, the endcap 18 may include an inner surface 38 having a threaded portion 40 to threadingly engage the threaded portion 36 of the housing 16 in an assembled configuration.

[0027] As illustrated in FIGS. 3 A and 3B, in some implementations, the housing 16 includes a plurality of baffles or other suitable structure defining a plurality of apertures 42 that allow for the movement of high pressure gas within the housing 16 (e.g., the passage 30).

[0028] With reference to FIGS. 3A and 3B, the closure mechanism 20 may include a base 44 and a plurality of fingers 46 supported by the base 44 for movement between an open position (FIGS.3 A, 5A) and a closed position (FIGS. 3B, 5B). In the assembled configuration, the closure mechanism 20 (e.g., the base 44 and / or the fingers 46) may surround and extend along a longitudinal axis A2. In some configurations, the longitudinal axis A2 is aligned with the longitudinal axis Al when the closure mechanism 20 is coupled to the housing 16. The closure mechanism 20 (e.g., the base 44 and / or the fingers 46) may be formed from one or more of a variety of materials, including, for example, aluminum, steel, or another suitable metal material.Atorney Docket No. 49536-62

[0029] The base 44 may include a first end 48, a second end 50, an inner surface 52 and an outer surface 54. As illustrated in FIG. 2, the inner and outer surfaces 52, 54 may surround and extend along the longitudinal axis A2 from the first end 48 to the second end 50, such that the inner and outer surfaces 52, 54 define a thickness T2 extending therebetween in a direction substantially perpendicular to the inner and outer surfaces 52, 54. Accordingly, the inner surface 52 may define an opening 56 at the second end 50 of the base 44.

[0030] In some implementations, the inner and outer surfaces 52, 54 each define a cylinder or a polygonal prism, such that the thickness T2 is uniform along and about the longitudinal axis A2. It will be appreciated, however, that the inner or outer surface 52, 54 may define other shapes within the scope of the present disclosure, such that the thickness T2 varies along or about the longitudinal axis A2.

[0031] In the assembled configuration, the closure mechanism 20 may be supported by the housing 16. For example, in some implementations, the closure mechanism 20 may be coupled to the inner and / or outer surfaces 26, 28 of the housing 16. In particular, the closure mechanism 20 may disposed near or at the distal end 24 of the housing 16. For example, the closure mechanism 20 may be disposed within the exit opening 34. In this regard, the opening 56 may be concentric with the exit opening 34. In some implementations, the second end 50 of the closure mechanism 20 is coplanar with the distal end 24 of the housing 16.

[0032] In some implementations, the closure mechanism 20 includes a threaded portion 58 surrounding the base 44. The threaded portion 58 may extend from the first end 48 to the second end 50 of the base 44. In the assembled configuration (e.g., FIG. 1), the threaded portion 58 may secure the closure mechanism 20 to the housing 16. In this regard, the housing 16 (e.g., the inner and / or outer surfaces 26, 28) may have a threaded portion 60 proximate the distal end 24 of the housing 16 to threadingly engage the threaded portion 58 of the closure mechanism 20 in the assembled configuration. Alternatively, the closure mechanism 20 may be coupled to the housing 16 using other suitable techniques such as, e.g., press-fit and / or welding into the distal end 24 of the housing 16.

[0033] With reference to FIG. 2, the fingers 46 may be coupled to the first end 48 of the base 44. In some implementations, the fingers 46, are equally spaced and circumferentially disposed around the axis A2. Each finger 46 may include an outer surface 62, one or more edges 64, and a distal end 65. In some implementations, each finger 46 includes a first edge 64-1 and a second edge 64-2Atorney Docket No. 49536-62 opposite the first edge 64-1. The first and second edges 64-1, 64-2 may extend from the base 44 to the distal end 65. In this regard, the first edge 64-1, the second edge 64-2, and the first end 48 of the base 44 may define a triangular or substantially triangular shape for each finger 46. The triangular shape may allow the fingers 46 to move between the open position (FIGS. 3A, 5A) and the closed position (FIGS. 3B, 5B) without interfering with one another. A cross-section of each finger 46 may define a triangular shape. The triangular cross-sectional shape may allow the fingers 46 to move between the open position (FIG. 3A) and the closed position (FIG. 3B) when high pressure gas (e.g., created by a projectile passing through the sound suppressor 14) contacts the outer surface 62. The high pressure gas may impart a torque on each finger 46.

[0034] The closure mechanism 20 may include a groove 66 formed by and / or between the plurality of fingers 46 and the base 44. The groove 66 may extend around an entire periphery (e.g., circumference) of the closure mechanism 20 and allow the closure mechanism 20 (e.g., the plurality of fingers 46) to move between the open position (FIGS. 3A, 5A) and the closed position (FIGS.3B, 5B). For example, the groove 66 may prevent the base 44 from interfering with the movement of the fingers 46 as the fingers 46 flex between the open position (FIGS. 3A, 5A) and the closed position (FIGS. 3B, 45B).

[0035] Referring to FIGS. 4A-4B, another closure mechanism 20a for use with the suppressor 14 (e.g., the housing 16 and / or endcap 18) is shown. The structure and function of the closure mechanism 20a may be substantially similar to that of the closure mechanism 20 except as otherwise described herein and / or shown in the drawings. In view of the substantial similarity in structure and function of the closure mechanism 20a relative to the closure mechanism 20, like reference numerals are used hereinafter and in the drawings to identify like components and / or features, while like reference numerals containing letter extensions (e.g., “a”) are used to identify those components and / or features that have been modified.

[0036] The closure mechanism 20a may include the base 44 and a plurality of fingers 46a supported by the base 44 for movement between an open position (FIG. 4A, 5A) and a closed position (FIG. 4B, 5B). Each finger 46a may include an outer surface 62a, one or more edges 64a, and a distal end 65a. A cross-section of each finger 46a may define an arcuate shape (e.g., FIGS.4A, 4B). For example, the outer surface 62a may define a convex curve extending between the base 44 and the distal end 65a. In particular, the outer surface 62a may define a parabolic shape extending from the base 44 to the distal end 65a. The arcuate shape may allow the fingers 46a toAtorney Docket No. 49536-62 move between the open position (FIG. 4A, 5A) and the closed position (FIG. 4B, 5B) when high pressure gas (e.g., created by a projectile passing through the sound suppressor 14) contacts the outer surface 62a. For example, the high pressure gas may impart a torque on each finger 46a.

[0037] As described above, during operation of the sound suppressor 14, the plurality of fingers 46, 46a may move between the open position (FIGS. 3A, 4A, 5A) and the closed position (FIGS. 3B, 4B, 5B). In the open position, the plurality of fingers 46 may allow a bullet or other projectile to pass through the passage 30 and out the exit opening 34 and / or the opening 56. As the fingers 46, 46a move from the open position (FIGS. 3A, 4A, 5A) to the closed position (FIGS. 3B, 4B, 5B), the fingers 46, 46a may rotate (e.g., pivot) toward the center of the passage 30 (e.g., toward the axis A2). In the closed position, the end 65 of each finger 46, 46a of the plurality of fingers 46, 46a may be substantially aligned with the axis A2. In this regard, the fingers 46, 46a may at least partially block the exit opening 34 and / or the opening 56. In the closed position, one or more edges 64 of each finger 46, 46a may contact one or more edges 64 of one or more other fingers 46, 46a along the entire length of the edges 64 such that the closure mechanism 20 (e.g., the plurality of fingers 46, 46a) may form a conical or frustoconical (FIG. 3B), or half-sphere shape (FIG. 4B) in the closed position (FIGS. 3B, 4B, 5B). In some implementations, the plurality of fingers 46, 46a completely block the exit opening 34 and / or the opening 56 in the closed position.

[0038] In use, a bullet or other projectile may be discharged from the firearm 12, producing high pressure gas and generating a sound. High pressure gas may exit the barrel of the firearm 12 and pass through the sound suppressor 14. As the high pressure gas passes through the sound suppressor 14, the configuration and arrangement (e.g., relative size, shape, location, quantity, orientation, material, etc.), as described herein, of the housing 16, and / or the closure mechanism 20 and fingers 46, 46a can help to reduce the volume of sound generated by the firearm 12. For example, high pressure gas passing through the sound suppressor 14 and the passage 30 may apply a force on the plurality of fingers 46, 46a of the closure mechanism 20 and cause the fingers 46, 46a to pivot relative to the base 44. In particular, the force produced by the high pressure gas may rotate each finger 46 from the open position (FIGS. 3 A, 4A, 5 A) to the closed position (FIGS. 3B, 4B, 5B), thereby at least partially blocking the exit opening 34 and / or the opening 56. As a result, the high pressure gas may be trapped within the suppressor 14 allowing for dissipation of the volume of sound by the apertures 42 as described herein. In particular, rotation of each finger 46, 46a from the open position (FIGS. 3A, 4A, 5A) to the closed position (FIGS. 3B, 4B, 5B) can force the highAtorney Docket No. 49536-62 pressure gas, sound waves, and pressure, through the apertures 42 in order to reduce the volume of the sound produced by the firearm 12.

[0039] The configuration and arrangement of the apertures 42 can help to resist the flow of gas therethrough, thereby absorbing the energy of the expanding gas and reducing the volume of the sound generated by the gas. In particular, the size, shape, and arrangement of the apertures 42 restricts or impedes the flow of gas therethrough.

[0040] After the suppressor 14 has reduced the pressure of the gas therein to a predetermined level, the spring force of each finger 46, 46a will return the closure mechanism 20 (e.g., the plurality of fingers 46, 46a) from the closed position (FIG. 3B, 4B, 5B) to the open position (FIG. 3 A, 4A, 5A), and allow the user to utilize the firearm 12 to discharge another bullet or projectile.

[0041] The following Clauses provide an exemplary configuration for a lock system and method, as described above.

[0042] Clause 1 : A suppressor for a firearm, the suppressor comprising: a housing including a first end defining an exit opening; and a closure mechanism supported by the first end of the housing and including a base and a plurality of fingers pivotably coupled to the base, wherein the plurality of fingers is configured to move from an open position to a closed position upon passage of a projectile through the exit opening.

[0043] Clause 2: The suppressor of clause 1, wherein the plurality of fingers is configured to move from the closed position to the open position after passage of the projectile through the exit opening.

[0044] Clause 3: The suppressor of any of clauses 1 through 2, wherein the closure mechanism is coupled to an inner surface of the housing.

[0045] Clause 4: The suppressor of any of clauses 1 through 3, wherein the closure mechanism is disposed within the first end of the housing.

[0046] Clause 5: The suppressor of any of clauses 1 through 4, wherein the closure mechanism is threaded into the first end of the housing.

[0047] Clause 6: The suppressor of any of clauses 1 through 5, wherein the plurality of fingers is circumferentially disposed around a first axis.Atorney Docket No. 49536-62

[0048] Clause 7: The suppressor of clause 6, wherein: the housing defines a second axis; and the first axis is coaxial with the second axis.

[0049] Clause 8: The suppressor of any of clauses 1 through 7, wherein each finger of the plurality of fingers has a triangular shape.

[0050] Clause 9: The suppressor of clause 8, wherein a cross-section of each finger of the plurality of fingers has a triangular shape.

[0051] Clause 10: The suppressor of any of clauses 1 through 9, wherein each finger includes a distal end and an outer surface defining an arcuate shape extending between the base and the distal end.

[0052] Clause 11: The suppressor of any of clauses 1 through 10, wherein the plurality of fingers at least partially blocks the exit opening in the closed position.

[0053] Clause 12: The suppressor of any of clauses 1 through 11, wherein the plurality of fingers completely blocks the exit opening in the closed position.

[0054] Clause 13: A suppressor for a firearm, the suppressor comprising: a housing defining an exit opening; and a closure mechanism disposed within the housing and including a base and a plurality of fingers pivotably coupled to the base, wherein the plurality of fingers is configured to move from an open position to a closed position upon passage of a projectile through the exit opening.

[0055] Clause 14: The suppressor of clause 13, wherein the plurality of fingers is configured to move from the closed position to the open position after passage of the projectile through the exit opening.

[0056] Clause 15: The suppressor of any of clauses 13 through 14, wherein the closure mechanism is connected to an inner surface of the housing.

[0057] Clause 16: The suppressor of any of clauses 13 through 15, wherein the closure mechanism is disposed within the first end of the housing.

[0058] Clause 17: The suppressor of any of clauses 13 through 16, wherein the closure mechanism is threaded into the first end of the housing.

[0059] Clause 18: The suppressor of any of clauses 13 through 17, wherein the plurality of fingers is circumferentially disposed around a first axis.Atorney Docket No. 49536-62

[0060] Clause 19: The suppressor of clause 18, wherein: the housing defines a second axis; and the first axis is coaxial with the second axis.

[0061] Clause 20: The suppressor of any of clauses 13 through 19, wherein each finger of the plurality of fingers has a triangular shape.

[0062] Clause 21 : The suppressor of clause 20, wherein a cross-section of each finger of the plurality of fingers has a triangular shape.

[0063] Clause 22: The suppressor of any of clauses 13 through 21, wherein each finger includes a distal end and an outer surface defining an arcuate shape extending between the base and the distal end.

[0064] Clause 23: The suppressor of any of clauses 13 through 22, wherein the plurality of fingers at least partially blocks the exit opening in the closed position.

[0065] Clause 24: The suppressor of any of clauses 13 through 23, wherein the plurality of fingers completely blocks the exit opening in the closed position.

[0066] The terminology used herein is for the purpose of describing particular exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “comprising,” “including,” and “having,” are inclusive and therefore specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. Additional or alternative steps may be employed.

[0067] When an element or layer is referred to as being “on,” “engaged to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly on, engaged, connected, attached, or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly engaged to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., “between” versus “directly between,”Atorney Docket No. 49536-62“adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0068] The terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and / or sections. These elements, components, regions, layers and / or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example configurations.

[0069] The term “set” generally means a grouping of one or more elements. The elements of a set do not necessarily need to have any characteristics in common or otherwise belong together. The phrase “at least one of A, B, and C” should be construed to mean a logical (A OR B OR C), using a non-exclusive logical OR, and should not be construed to mean “at least one of A, at least one of B, and at least one of C.” The phrase “at least one of A, B, or C” should be construed to mean a logical (A OR B OR C), using a non-exclusive logical OR.

[0070] The foregoing description has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular configuration are generally not limited to that particular configuration, but, where applicable, are interchangeable and can be used in a selected configuration, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

Claims

Atorney Docket No. 49536-62CLAIMS1. A suppressor for a firearm, the suppressor comprising: a housing including a first end defining an exit opening; and a closure mechanism supported by the first end of the housing and including a base and a plurality of fingers pivotably coupled to the base, wherein the plurality of fingers are configured to move from an open position to a closed position upon passage of a projectile through the exit opening.

2. The suppressor of claim 1, wherein the plurality of fingers is configured to move from the closed position to the open position after passage of the projectile through the exit opening.

3. The suppressor of claim 1, wherein the closure mechanism is coupled to an inner surface of the housing.

4. The suppressor of claim 1, wherein the closure mechanism is disposed within the first end of the housing.

5. The suppressor of claim 1, wherein the closure mechanism is threaded into the first end of the housing.

6. The suppressor of claim 1, wherein the plurality of fingers is circumferentially disposed around a first axis.

7. The suppressor of claim 6, wherein: the housing defines a second axis; and the first axis is coaxial with the second axis.

8. The suppressor of claim 1, wherein each finger of the plurality of fingers has a triangular shape.Atorney Docket No. 49536-629. The suppressor of claim 8, wherein a cross-section of each finger of the plurality of fingers has a triangular shape.

10. The suppressor of claim 1, wherein each finger includes a distal end and an outer surface defining an arcuate shape extending between the base and the distal end.

11. The suppressor of claim 1, wherein the plurality of fingers at least partially blocks the exit opening in the closed position.

12. The suppressor of claim 1, wherein the plurality of fingers completely blocks the exit opening in the closed position.

13. A suppressor for a firearm, the suppressor comprising: a housing defining an exit opening; and a closure mechanism disposed within the housing and including a base and a plurality of fingers pivotably coupled to the base, wherein the plurality of fingers are configured to move from an open position to a closed position upon passage of a projectile through the exit opening.

14. The suppressor of claim 13, wherein the plurality of fingers are configured to move from the closed position to the open position after passage of the projectile through the exit opening.

15. The suppressor of claim 13, wherein the closure mechanism is coupled to an inner surface of the housing.

16. The suppressor of claim 13, wherein the closure mechanism is disposed within a first end of the housing.

17. The suppressor of claim 13, wherein the closure mechanism is threaded into a first end of the housing.

18. The suppressor of claim 13, wherein the plurality of fingers are circumferentially disposed around a first axis.Attorney Docket No. 49536-6219. The suppressor of claim 18, wherein: the housing defines a second axis; and the first axis is coaxial with the second axis.

20. The suppressor of claim 13, wherein each finger of the plurality of fingers has a triangular shape.

21. The suppressor of claim 20, wherein a cross-section of each finger of the plurality of fingers has a triangular shape.

22. The suppressor of claim 13, wherein each finger includes a distal end and an outer surface defining an arcuate shape extending between the base and the distal end.

23. The suppressor of claim 13, wherein the plurality of fingers at least partially blocks the exit opening in the closed position.

24. The suppressor of claim 13, wherein the plurality of fingers completely blocks the exit opening in the closed position.

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