Dec 30, 2025

US12510327 - Equipment rail attachment

The invention discloses a hand guard connecting structure of a firearm, which has the advantages of simple structure, convenience in processing, quickness in disassembly and assembly, firmness in connection, reliability in positioning and good part assembly consistency. The utility model provides a hand protector section of thick bamboo connection structure of firearms, includes hand protector section of thick bamboo, lower case body, the polygon is personally submitted to hand protector section of thick bamboo transversal, is equipped with the rectangular channel on each face of hand protector section of thick bamboo respectively, still includes the connecting plate, the connecting plate is located the hand protector section of thick bamboo, and the lower surface of connecting plate is equipped with the boss, and the rectangular channel on boss and the hand protector section of thick bamboo bottom surface corresponds, and each boss joint is fixed in the rectangular channel that corresponds, is equipped with normal direction last screw hole on each boss respectively, it is equipped with down the screw hole to correspond on the case body down, and lower case body passes through screw, screw hole fixed connection with each boss, forms the fixed connection of hand protector section of thick bamboo, lower case body.

Assignee: Smith & Wesson Inc.
Inventors: Simon M. Muska, Brady Hoddinott
Filing date: 2024-06-17

firearmaccessoryrailreceiver

The patent describes a hand guard connecting structure for firearms that allows for easy assembly and disassembly while ensuring a secure and reliable connection. It features an upper receiver assembly that includes an equipment rail and an equipment rail key, designed to create a cam interface that secures the rail to the receiver.

Claim 1

1 . An upper receiver assembly for a firearm, comprising: an upper receiver; an equipment rail; and an equipment rail key, wherein the equipment rail key is configured to couple to the upper receiver with a portion of the equipment rail between the equipment rail key and the upper receiver to secure the equipment rail to the upper receiver, wherein the equipment rail and equipment rail key cooperate to define a cam interface, wherein the cam interface is configured to cause the equipment rail to be drawn against the upper receiver when the equipment rail key is secured against the upper receiver. an upper receiver; an equipment rail; and an equipment rail key, wherein the equipment rail key is configured to couple to the upper receiver with a portion of the equipment rail between the equipment rail key and the upper receiver to secure the equipment rail to the upper receiver, wherein the equipment rail and equipment rail key cooperate to define a cam interface, wherein the cam interface is configured to cause the equipment rail to be drawn against the upper receiver when the equipment rail key is secured against the upper receiver.

Google Patents

https://patents.google.com/patent/US12510327

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12510327