Barrel nut assembly and method to attach a barrel to a firearm using such assembly

Register USPTO Patent
Application Number 16916026
Grant Number 11530892
Status In Force
Filing Date 2020-06-29
First Publication Date 2021-05-27
Publication Date 2021-05-27
Grant Date 2022-12-20
Owner LWRC International LLC (USA)
Inventor Gomez, Jesus S.


A fixture for use with AR15/M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15/M16 type barrel nut, as well as other designs as disclosed herein.

IPC Classes  ?

  • F41A 21/48 - Barrel mounting means, e.g. releasable mountings for replaceable barrels
  • F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel