Aug 12, 2025

US12385718 - Locking pin for use in an adjustable buttstock

A locking pin assembly for use with an adjustable buttstock of a firearm. The locking pin assembly, in cooperation with an adjustable buttstock, may be used to permit a buttstock to be collapsed or extended in relation to a firearm's receiver. The locking pin assembly engages with the body and release lever of the buttstock to provide for their operative connection. The locking pin assembly is easily fabricated and used.

Assignee: VAMCO, INC
Inventors: Gregory Herrmann
Filing date: 2024-07-18

buttstocklocking pinfirearm

The patent describes a locking pin assembly designed for adjustable buttstocks on firearms, facilitating the extension and collapse of the buttstock in relation to the firearm’s receiver. The assembly features a unique design with a discoid head, a cap, and a coaxial stem that includes a major and minor shaft, enhancing its functionality and ease of fabrication.

Claim 1

A locking pin assembly adapted for use with an adjustable buttstock assembly, the locking pin assembly comprising: a locking pin comprising: a first end having a discoid head; a second end having a cap; a stem extending between the head and cap, the stem comprising a major shaft adjoining the cap and a minor shaft adjoining the head, the major shaft being coaxially integral with the minor shaft, a diameter of the major shaft exceeding a diameter of the minor shaft, wherein the diametrical transition between the major and minor shafts defines a step; a circumferential clip channel defined between the head and the step; and a planar keyway on the major shaft extending from the step toward the cap. a locking pin comprising: a first end having a discoid head; a second end having a cap; a stem extending between the head and cap, the stem comprising a major shaft adjoining the cap and a minor shaft adjoining the head, the major shaft being coaxially integral with the minor shaft, a diameter of the major shaft exceeding a diameter of the minor shaft, wherein the diametrical transition between the major and minor shafts defines a step; a circumferential clip channel defined between the head and the step; and a planar keyway on the major shaft extending from the step toward the cap. a first end having a discoid head; a second end having a cap; a stem extending between the head and cap, the stem comprising a major shaft adjoining the cap and a minor shaft adjoining the head, the major shaft being coaxially integral with the minor shaft, a diameter of the major shaft exceeding a diameter of the minor shaft, wherein the diametrical transition between the major and minor shafts defines a step; a circumferential clip channel defined between the head and the step; and a planar keyway on the major shaft extending from the step toward the cap.

Google Patents

https://patents.google.com/patent/US12385718

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12385718