# US 2022/0065569 A1 · Firearm Having a Detachable Stock

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- Number: US 2022/0065569 A1
- Document ID: US20220065569A1
- Status: Published application
- Kind: A1
- Application number: 17/239,967
- Filed: 2021-04-26
- Published: 2022-03-03
- Earliest claimed: 2020-08-25
- Assignees: Smith & Wesson Corp.
- Applicants: Smith & Wesson Inc.
- Inventors: Mark Laney; Karl Ricker
- Web page: https://patentgrep.com/patent/US20220065569A1

## CPC

- F41A 11/04: Articulated or collapsible guns, i.e. with hinged or telescopic parts for transport or storage (breakdown shotguns or rifles F41C7/11; folding or telescopic stocks or stock parts F41C23/04)
- F41A 11/00: Assembly or disassembly features; Modular concepts; Articulated or collapsible guns (F41A3/64, F41A19/10 - F41A19/15, F41A21/48, F41A25/26 take precedence)
- F41C 23/00: Butts; Butt plates; Stocks {(handles for carrying smallarms F41C33/08)}
- F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41C: SMALLARMS, e.g. PISTOLS, RIFLES (functional features or details common to both smallarms and ordnance, mountings therefor F41A; projecting missiles without use of explosive or combustible propellant charge F41B); ACCESSORIES THEREFOR

## Abstract

A firearm has a receiver with a receptacle. A stock has a projection which is received within the receptacle to mount the stock on the receiver. A spring biased detent holds the stock in engagement with the receptacle. Manual manipulation of the detent allows the stock to be removed from the firearm's receiver.

## Claims

### Claim 1

A firearm, said firearm comprising:
a receiver having a receptacle at one end thereof, said receptacle having an inner surface defining a bore arranged coaxially with an axis, said receptacle defining a first opening arranged coaxially with said axis and a second opening arranged transversely to said axis;
a stock comprising a butt positioned at a first end thereof and a projection extending from a second end opposite to said first end, said projection being insertable into and removable from said receptacle;
a plunger mounted on said projection, said plunger being oriented transversely to said axis when said projection engages said receptacle;
a spring acting between said plunger and said projection and biasing said plunger into engagement with said second opening when said plunger is aligned therewith when said projection engages said receptacle, wherein engagement between said plunger and said second opening retains said stock to said receiver.

### Claim 2 (depends on 1)

The firearm according to claim 1, further comprising a ramp surface positioned on said inner surface of said receptacle, said ramp surface being oriented at an angle with respect to said axis, said ramp surface being contiguous with said first opening.

### Claim 3 (depends on 2)

The firearm according to claim 2, wherein said ramp surface is angularly offset from said second opening about said axis.

### Claim 4 (depends on 2)

The firearm according to claim 2, wherein said ramp surface is angularly offset from said second opening at an offset angle of 90° about said axis.

### Claim 5 (depends on 2)

The firearm according to claim 2, wherein said ramp surface comprises a conical surface surrounding said first opening.

### Claim 6 (depends on 5)

The firearm according to claim 5, wherein said conical surface subtends an angle of less than 180° at said first opening.

### Claim 7 (depends on 1)

The firearm according to claim 1, further comprising an O-ring positioned on said projection.

### Claim 8 (depends on 7)

The firearm according to claim 7, wherein said O-ring is seated within a circumferential groove extending around said projection.