Mar 17, 2026

US12578164 - Firearm stock with adjustable length of pull

A firearm stock includes a stock body slidably mounted on a beam. A lever attached to the stock body can be moved between a locked position and at least one unlocked position, where operating the lever moves a locking mechanism between locked and unlocked positions. For example, when the lever is in a first unlocked position, the locking mechanism permits longitudinal adjustment of the stock body along the beam. When the lever is in a second unlocked position the locking mechanism permits the stock body to be slidably removed from the beam. In one example, the lower portion of the stock body defines a plurality of cam pathways for pins that secure the lever to the stock body. Forward cam pathways permit either a pivoting movement about the rear pin or a downward and forward shifting movement.

Assignee: Sig Sauer, Inc.
Inventors: Evan Miller, Zachary A. Amico
Filing date: 2024-10-31

firearmstockadjustablemechanism

The patent describes an adjustable firearm stock that allows for the stock body to be longitudinally adjusted or completely removed from a beam through a lever-operated locking mechanism. The design includes cam pathways that facilitate different movements of the stock body, enhancing user adaptability and ease of use.

Claim 1

1 . An adjustable firearm stock comprising: a stock body having an upper body portion and a lower body portion, the upper body portion defining a longitudinal beam opening, the lower body portion defining a rear cam pathway and a forward cam pathway with first and second portions; and a lever attached to the stock body with a first pin in the rear cam pathway and a second pin in the forward cam pathway, wherein the lever is operable between a locked lever position and at least one unlocked lever position. a stock body having an upper body portion and a lower body portion, the upper body portion defining a longitudinal beam opening, the lower body portion defining a rear cam pathway and a forward cam pathway with first and second portions; and a lever attached to the stock body with a first pin in the rear cam pathway and a second pin in the forward cam pathway, wherein the lever is operable between a locked lever position and at least one unlocked lever position.

Google Patents

https://patents.google.com/patent/US12578164

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12578164