Back strap and grip frame extender

Patent metadata

Field	Value
Publication number	US-12078439-B2
Application number	US-202318115039-A
Country	US
Kind code	B2
Filing date	Feb 28, 2023
Priority date	Feb 28, 2022
Publication date	Sep 3, 2024
Grant date	Sep 3, 2024

Abstract

A combination back strap and grip extender mountable on a grip of a firearm. The grip defines a magazine well. The combination comprises a strap positionable lengthwise along and overlying an anterior portion of said grip. The strap has first and second ends oppositely disposed. The first and second ends are removably attachable to said grip. The grip extender is mounted on said second end of said strap. The grip extender comprises a collar defining a lumen aligned with said magazine well when said strap overlies said grip.

First claim

What is claimed is:

1. A combination back strap and grip extender mountable on a grip of a firearm, said grip defining a magazine well and having an anterior portion, said combination comprising:
a strap positionable lengthwise along and overlying said anterior portion of said grip, said strap having first and second ends oppositely disposed, said first and second ends being removably attachable to said grip, said strap comprising an aperture positioned in said second end of said strap; and
a grip extender mounted on said second end of said strap, said grip extender comprising a collar defining a lumen aligned with said magazine well when said strap overlies said grip.

2. The combination according to claim 1 , wherein said strap further comprises a spur projecting from said first end of said strap, said spur being adapted to engage a recess within a frame of said firearm.

3. The combination according to claim 1 , wherein said aperture is defined by a lug projecting from said second end of said strap.

4. The combination according to claim 3 , wherein said lug comprises a ramp surface surrounding said aperture.

5. A firearm comprising:
a frame defining a grip, said grip defining a magazine well and having an anterior portion;
a combination back strap and grip extender removably mounted on said grip, said combination comprising:
a strap positionable lengthwise along and overlying said anterior portion of said grip, said strap having first and second ends oppositely disposed, said first end being removably attached to said grip, said strap comprising an aperture positioned in said second end of said strap; and
a grip extender mounted on said second end of said strap, said grip extender comprising a collar defining a lumen aligned with said magazine well when said strap overlies said grip.

6. The firearm according to claim 5 , further comprising:
a hammer strut positioned within said grip;
a cup positioned within said grip;
a mainspring positioned within said grip and acting between said hammer strut and said cup;
a plunger mounted on said cup and extending through said aperture in said grip.

7. The firearm according to claim 6 , further comprising:
a spur projecting from said first end of said strap, said spur engaging a recess in said frame; wherein
said aperture receives said plunger, and engagement of said spur with said frame and said plunger with said aperture retains said combination to said grip.

8. The firearm according to claim 7 , wherein said aperture is defined by a lug projecting from said second end of said strap.

9. The firearm according to claim 8 , wherein said lug comprises a ramp surface surrounding said aperture, said ramp surface facing said plunger when said grip strap is retained to said grip.

10. The firearm according to claim 7 , further comprising a plate mounted on said grip, said plate defining said aperture.

11. The firearm according to claim 10 , wherein said plate has a plate surface facing said mainspring, said plate surface surrounding said opening and defining a line of motion along which said plunger moves, such that movement of said plunger toward said mainspring compresses said mainspring.

12. The firearm according to claim 6 , wherein said mainspring comprises a coil spring surrounding an axis oriented parallel to said line of motion of said plunger.

13. The firearm according to claim 12 , wherein said axis is coaxially aligned with said line of motion.

14. A method of attaching a combination back strap and grip extender to a grip of a firearm, said method comprising:
engaging a spur extending from a first end of a strap with a recess in said grip;
rotating said combination about said spur toward said grip;
engaging an aperture positioned in a grip extender with a plunger extending from an opening in said grip.

15. The method according to claim 14 , further comprising biasing said plunger into engagement with said aperture using a mainspring of a trigger strut positioned within said grip.

16. The method of attaching a grip strap according to claim 14 , further comprising moving said plunger toward said mainspring by engaging said plunger with a ramp surface mounted on said grip extender upon rotating said combination about said spur toward said grip.

17. A method of removing a combination back strap and grip extender from a grip of a firearm, said method comprising:
moving a plunger out of engagement with an aperture positioned in a grip extender;
rotating said combination away from said grip about a spur extending from a first end of a strap, said spur being engaged with a recess in said grip;
removing said spur from engagement with said recess.

18. The method according to claim 17 comprising moving said plunger out of engagement with said aperture by compressing a mainspring of a trigger strut positioned within said grip.

19. The method according to claim 17 , wherein moving said plunger comprises inserting a tool into said aperture and engaging said plunger with said tool.

Assignees

• Smith & Wesson Inc

Inventors

• Curry Brett

Classifications

• F41A19/44

  Sear arrangements therefor (F41A19/46 takes precedence) · CPC title

• F41C23/16

  Forestocks; Handgrips; Hand guards (pump-action guns F41C7/02) · CPC title

• F41C23/10

  Stocks or grips for pistols, e.g. revolvers (F41C23/12 takes precedence) · CPC title

• F41A3/66 Primary

  Breech housings or frames; Receivers · CPC title