Sep 1, 2026

US12723837 - Firearm accessory mounting system

An accessory rail mounting system for a firearm comprises an elongated stock defining a downwardly open magazine well cavity, and a magazine well insert comprising an elongated body including a mounting portion and elongated coupling rail cantilevered from the mounting portion. The mounting portion is configured for detachable mounting to a bottom surface of the stock at the magazine well cavity. Threaded fasteners may be used for mounting. The mounting portion includes an elongated magazine aperture configured to receive an ammunition magazine therethrough and latching feature configured to engage a latch of the magazine to releasably retain the magazine in the firearm. The coupling rail is configured to detachably couple and mount a firearm accessory thereto. The coupling rail may have numerous rail configurations compatible with mounting interfaces of various types of firearm accessories, such as bipods, tripods, and other accessories. Mounting portions may be varied to accept different magazines.

Inventors: Scott Warburton, John M. French
Filing date: 2024-12-09

firearmaccessorymountingsystem

The patent describes a firearm accessory mounting system that features a stock with a magazine well cavity and a detachable stock insert equipped with a coupling rail for various accessories. This design allows for the secure attachment of accessories while accommodating different magazine types through a latching mechanism.

Claim 1

1 . An accessory rail mounting system for a firearm comprising: a longitudinal axis; an elongated stock defining a downwardly open magazine well cavity; a stock insert comprising a longitudinally elongated body including a mounting portion configured for detachable mounting to a bottom surface of the stock at the magazine well cavity, and an elongated coupling rail cantilevered from the mounting portion; the coupling rail being configured to detachably couple a firearm accessory thereto; wherein the coupling rail extends forwardly from the mounting portion of the stock insert; and wherein the coupling rail comprises an arcuately curved top surface defining an axially elongated concavity, the stock comprising an arcuately curved bottom surface which is at least partially nested in the concavity. a longitudinal axis; an elongated stock defining a downwardly open magazine well cavity; a stock insert comprising a longitudinally elongated body including a mounting portion configured for detachable mounting to a bottom surface of the stock at the magazine well cavity, and an elongated coupling rail cantilevered from the mounting portion; the coupling rail being configured to detachably couple a firearm accessory thereto; wherein the coupling rail extends forwardly from the mounting portion of the stock insert; and wherein the coupling rail comprises an arcuately curved top surface defining an axially elongated concavity, the stock comprising an arcuately curved bottom surface which is at least partially nested in the concavity.

Google Patents

https://patents.google.com/patent/US12723837

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12723837