US-12618641-B1 - Firearm shoulder stock assembly

US12618641B1US 12618641 B1US12618641 B1US 12618641B1US-12618641-B1

Abstract

An adjustable firearm butt stock that is constructed to be secured to a rearward facing end of a firearm receiver assembly. The butt stock defines a plurality of magazine wells that are offset from one another along a longitudinal axis of the stock. Each magazine well opens in a generally downward facing direction and is constructed to removeably cooperate with cartridge magazines that removeable cooperate with the receiver magazine well associated with operation of an underlying firearm. The stock includes discrete magazine catches associated with each of the respective wells and which are operable to selectively secure and/or effectuate storage and/or removal of discrete cartridge magazines from a respective one of the first and second magazine wells defined by the butt stock.

Inventors

David Anthony Trudeau
Adam Eyad Khoury

Assignees

TruArmor a division of Clear-Armor, LLC.

Dates

Publication Date: 20260505
Application Date: 20241101

Claims (20)

1 . A firearm shoulder stock assembly comprising: a shoulder stock body that is defined by a unitary body that is constructed to be connected to a firearm receiver such that the shoulder stock body extends rearward from the firearm receiver when the shoulder stock body is connected thereto; a first magazine well formed in a downward facing surface and defined by the unitary body of the shoulder stock body between a forward facing end and a rearward facing end thereof; a second magazine well formed in the downward facing surface and defined by the unitary body of the shoulder stock body between the forward facing end and the rearward facing end of the shoulder stock body, the second magazine well being offset in a longitudinal direction along the unitary body the shoulder stock body from the first magazine well; and each of the first magazine well and the second magazine well being unobstructed and shaped to removeably cooperate with a cartridge magazine such that the respective cartridge magazine extends beyond the respective one of the first magazine well and the second magazine well when engaged therewith and such that the first magazine well and the second magazine well are non-removable from the shoulder stock body and are aligned with a receiver magazine well defined by a firearm when the shoulder stock body is connected thereto.
2 . The firearm shoulder stock assembly of claim 1 further comprising a magazine catch associated with each of the first magazine well and the second magazine well and supported by the unitary body of the shoulder stock body.
3 . The firearm shoulder stock assembly of claim 2 wherein the magazine catch associated with the first magazine well is independently operable relative to the magazine catch associated with the second magazine well.
4 . The firearm should stock assembly of claim 2 further comprising a spring associated with each magazine catch and that is operable to bias the respective magazine catch into engagement with a cartridge magazine when a respective cartridge magazine is engaged with a respective one of the first magazine well and the second magazine well.
5 . The firearm shoulder stock assembly of claim 1 further comprising a cavity formed in the forward facing end of the shoulder stock body such that the cavity extends through the shoulder stock body in a crossing direction relative to the first magazine well and second magazine well.
6 . The firearm shoulder stock assembly of claim 5 further comprising a catch pivotably attached to the unitary body of the shoulder stock body proximate the cavity and constructed to cooperate with a buffer tube attached to a firearm receiver.
7 . The firearm shoulder stock assembly of claim 6 wherein the catch selectively engages a buffer tube at a plurality of discrete positions to alter a position of the shoulder stock assembly relative to a firearm receiver.
8 . A firearm butt stock assembly comprising: a stock body defined by a one-piece body; a first magazine well formed in a downward facing surface of the stock body; a second magazine well formed in the downward facing surface of the stock body such that the first magazine well and the second magazine well are each inseparable from the one-piece body of the stock body and are aligned along a longitudinal centerline of the stock body and shaped to slideably receive respective cartridge magazines that extend beyond the one-piece body of the stock body when engaged therewith and such that the first magazine well and second magazine well are unobstructed and are aligned with a receiver magazine well when the stock body is connected to a firearm.
9 . The firearm butt stock assembly of claim 8 further comprising a first magazine catch associated with the first magazine well and a second magazine catch associated with the second magazine well and wherein each of the first magazine catch and the second magazine are slidably associated with the one-piece body of the stock body.
10 . The firearm butt stock assembly of claim 9 wherein the first magazine catch and the second magazine catch are independently operable.
11 . The firearm butt stock assembly of claim 9 further comprising a first spring constructed to bias the first magazine catch into engagement with a cartridge magazine associated with the first magazine well and a second spring constructed to bias the second magazine catch into engagement with a cartridge magazine associated with the second magazine well.
12 . The firearm butt stock assembly of claim 8 further comprising a buffer tube pocket formed in a forward facing end of the one-piece body of the stock body.
13 . The firearm butt stock assembly of claim 8 further comprising a buffer tube catch attached to a forward facing end of the stock body and constructed to secure the stock body to a buffer tube at a plurality of positions.
14 . The firearm butt stock assembly of claim 8 further comprising a first cartridge magazine that removably cooperates with each of the first magazine well and the second magazine well and a second cartridge magazine that removably cooperates with each of the first magazine well and the second magazine well, the first cartridge magazine and the second cartridge magazine each extending beyond a respective one of the first magazine well and the second magazine well when engaged therewith.
15 . A method of forming a firearm shoulder stock, the method comprising: forming a stock body constructed to be connected to a firearm receiver assembly; forming a first magazine well in the stock body; and forming a second magazine well in the stock body such that the first magazine well and the second magazine well are each defined by the stock body, are inseparable from the stock body, are unobstructed, and are offset from one another relative to a longitudinal axis of the stock body and such that the first magazine well and the second magazine well open in a common direction with respect to a receiver magazine well defined by a firearm receiver assembly when the stock body is connected thereto.
16 . The method of claim 15 further comprising providing a magazine release associated with each of the first magazine well and the second magazine well.
17 . The method of claim 15 further comprising forming the stock body to slideably cooperate with a buffer tube associated with a firearm receiver assembly.
18 . The method of claim 17 further comprising providing an adjuster that is supported by the stock body and which cooperates the buffer tube to adjust a longitudinal position of the stock body relative to the buffer tube when engaged therewith.
19 . The method of claim 15 further comprising forming a pad associated with a rearward facing end of stock body.
20 . The method of claim 15 further comprising further providing at least one cartridge magazine that removeably cooperates with either of the first magazine well and the second magazine well such that the at least one cartridge magazine extends beyond the stock body when engaged with either one of the first magazine well and the second magazine well.

Description

BACKGROUND OF THE INVENTION The present invention relates generally to firearms and, more particularly, to a firearm shoulder or butt stock assembly that is constructed to selectively secure additional cartridge magazines to an underlying firearm. Many firearms are constructed to removably cooperate with a cartridge magazine that can be selectively engaged with the firearm receiver assembly are which are constructed to cooperate with the firing mechanism of the firearm to sequentially deliver discrete rounds of ammunition to the chamber of the firearm. Whereas some such firearms are constructed for manual operation of the underlying bolt to effectuate cyclic introduction of discrete cartridges to the firing chamber and extraction of spent casing from the firing chamber, other firearms are configured to operate in an automatic or semi-automatic modality. As commonly understood, during semi-automatic operation of such firearms, a trigger actuation is required to effectuate a discharge of an initial round of ammunition associated with the firing chamber, automatic ejection the casing associated with a recently discharged round of ammunition, and automatic introduction of a subsequent round of ammunition to the firing chamber when available. When configured for fully automatic operation, multiple rounds of ammunition can be discharged with each trigger actuation when additional ammunition is available. Ammunition is communicated to the action of the firearm by a magazine that is engaged with a magazine well defined by the receiver assembly, or lower receiver, of the underlying firearm. Many firearms are constructed to support a cartridge or ammunition magazine at a location forward of the trigger and trigger guard assembly such that the magazines can be selectively engaged and disengaged from the receiver via operation of a catch assembly and generally substantially vertical and/or forward/rearward and predominantly vertical translation of the magazine relative to the underlying firearm. Such configurations expedite the removal and association of discrete magazines with the receiver assembly of the firearm in a manner that is both intuitive and does not overly detract from a shooters ability to maintain a visual inspection of an intended target. In an effort to increase the duration associated with operation of an underlying firearm, others provide various magazine configurations that are simply larger magazines that are constructed to accommodate more discrete rounds of ammunition. Such approaches are not without their respective drawbacks. Magazines having capacities of 5-100 rounds of ammunition are available but 15-30 round magazines are more commonly employed. As is commonly understood, the capacity of discrete magazines is a function of both the longitudinal length of the discrete magazine as well as the size of the discrete cartridges associated with a respective caliber of the underlying firearm. While exchanging a five round magazine for a 100 round magazine substantially increases the operational duration of the underlying firearm, doing so substantially effects the balance of the firearm and greatly effects the footprint of the firearm when such larger capacity magazines are engaged therewith. Many skilled and/or professional firearm users are dissuaded from such approaches as being overly detrimental to desired firearm operation and accuracy. Altering configurations from five rounds of ammunition to 100 rounds of ammunition being oriented forward of the trigger group of a firearm also substantially impacts the user's maneuverability and exacerbates fatigue associated with use of the underlying firearm. Further still, such larger capacity magazines further detract from storage and transport of the firearms and can negate cooperation of the underlying firearm with rifle rests and storage racks without removal or dissociation of the underlying magazine. Still others provide firearm stock configurations wherein the stock is constructed to support supplement ammunition. Some such constructions simply support discrete rounds of ammunition intended to be individually delivered to the firearm action. Still others provide firearm stocks that are constructed to support supplemental ammunition magazines. Unfortunately, such approaches are not without their respective drawbacks. Many such configurations include a supplemental door or cover that is constructed to enclose the discrete magazines within an enclosed compartment of the stock. Still others require dissociation of the firearm stock from the shoulder of the shooter to effectuate the removal of supplemental magazines from the stock assembly. Such requirements detract from the user's ability to maintain visual association of the firearm with an intended target and require considerable movement of the bore of the firearm to off-target orientations to effectuate the operation of removal of a spent magazine from the receiver of the firearm, removal of a supp