May 26, 2026

US12638256 - Breaching tool

A receiver assembly for a breaching tool has an upper receiver with female fittings in the form of side flanges at the front and back that connect to the lower receiver's male fittings in the form of a front center post and back sidewalls. The post fits between the front side flanges and the back sidewalls fit between the back side flanges. Apertures in the front side flanges are aligned with an aperture in the center post, and apertures in the back sidewalls align with the back side flanges, and takedown pins extend through the aligned apertures. The flanges can include cutback angles which engage with a front riser in the lower receiver's sidewalls and with rear bosses extending outward from the lower receivers sidewalls. A protrusion in the upper receiver's magazine well only allows a magazine with a notch at its top, front end to engage with the well.

Inventors: Jeremy Michael Sanders
Filing date: 2024-07-25

breachingfirearmreceiversemiautomatic

The patent describes a receiver assembly for a semiautomatic breaching gun, featuring an upper receiver with flanges that connect to a lower receiver, allowing for secure assembly and alignment through apertures and takedown pins. Additionally, the design includes a magazine well that only accommodates magazines with a specific notch, enhancing compatibility and functionality.

Claim 1

1 . A receiver assembly for a semiautomatic breaching gun, comprising: a lower receiver comprising a pair of sidewalls extending from a front section to a back section and a post extending upward at the front section, wherein an open space is located between the pair of sidewalls at the front section, wherein the post comprises a first aperture, and wherein the sidewalls at the back section each comprise a second aperture; an upper receiver comprising a first pair of side flanges, a second pair of side flanges, and a magazine well between the first pair of side flanges, wherein the first pair of side flanges extend downward from a bottom side to a distal end and engage with a topside of the sidewalls at the front section of the lower receiver, wherein the second pair of side flanges extend downward from the bottom side and at least partially extend over the sidewalls of the lower receiver at the back section, wherein the first pair of side flanges comprise a first pair of apertures aligned with the first aperture in the post, and the wherein second pair of side flanges comprise a second pair of apertures aligned with the second aperture in each of the sidewalls; and a magazine with a top section extending through the open space between the pair of sidewalls in the lower receiver and engaged with the magazine well in the upper receiver. a lower receiver comprising a pair of sidewalls extending from a front section to a back section and a post extending upward at the front section, wherein an open space is located between the pair of sidewalls at the front section, wherein the post comprises a first aperture, and wherein the sidewalls at the back section each comprise a second aperture; an upper receiver comprising a first pair of side flanges, a second pair of side flanges, and a magazine well between the first pair of side flanges, wherein the first pair of side flanges extend downward from a bottom side to a distal end and engage with a topside of the sidewalls at the front section of the lower receiver, wherein the second pair of side flanges extend downward from the bottom side and at least partially extend over the sidewalls of the lower receiver at the back section, wherein the first pair of side flanges comprise a first pair of apertures aligned with the first aperture in the post, and the wherein second pair of side flanges comprise a second pair of apertures aligned with the second aperture in each of the sidewalls; and a magazine with a top section extending through the open space between the pair of sidewalls in the lower receiver and engaged with the magazine well in the upper receiver.

Google Patents

https://patents.google.com/patent/US12638256

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12638256