Sep 22, 2026

US12742611 - Firearm accessory mounting interface

An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.

Assignee: Magpul Industries Corp.
Inventors: Michael T. Mayberry, William Bradley Bennett, Timothy Eric Roberts, Duane Liptak, Brian L. Nakayama
Filing date: 2024-07-17

firearmaccessorymountinginterface

The patent describes an accessory mounting interface for firearms that includes a first elongated fastener and a second fastener designed to secure an accessory within a defined slot on the firearm. This system allows for the accessory to be coupled to the firearm while preventing unwanted rotation through the use of strategically placed straight edges on the second fastener.

Claim 1

1 . An accessory mounting system for a firearm comprising: a mounting surface defining a slot having a first end and a second end; an accessory comprising a first protrusion and a second protrusion, the accessory defining a hole extending through the first protrusion; a first fastener having an elongated body; and a second fastener defining a hole; wherein: the elongated body of the first fastener is configured to extend through the hole of the accessory and through the hole of the second fastener; the elongated body of the first fastener and the second fastener are configured to extend through the slot of the mounting surface and couple the accessory with the mounting surface; the first protrusion of the accessory is configured to sit within the slot and abut the first end of the slot; and the second protrusion of the accessory is configured to sit within the slot and abut the second end of the slot. a mounting surface defining a slot having a first end and a second end; an accessory comprising a first protrusion and a second protrusion, the accessory defining a hole extending through the first protrusion; a first fastener having an elongated body; and a second fastener defining a hole; wherein: the elongated body of the first fastener is configured to extend through the hole of the accessory and through the hole of the second fastener; the elongated body of the first fastener and the second fastener are configured to extend through the slot of the mounting surface and couple the accessory with the mounting surface; the first protrusion of the accessory is configured to sit within the slot and abut the first end of the slot; and the second protrusion of the accessory is configured to sit within the slot and abut the second end of the slot. the elongated body of the first fastener is configured to extend through the hole of the accessory and through the hole of the second fastener; the elongated body of the first fastener and the second fastener are configured to extend through the slot of the mounting surface and couple the accessory with the mounting surface; the first protrusion of the accessory is configured to sit within the slot and abut the first end of the slot; and the second protrusion of the accessory is configured to sit within the slot and abut the second end of the slot.

Google Patents

https://patents.google.com/patent/US12742611

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12742611