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

摘要

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.

主权项

1. A barrel nut assembly apparatus comprising:
a barrel nut assembly for connecting a firearm barrel to a receiver of a firearm, said barrel nut assembly including: a barrel nut which is generally cylindrical in shape and defines a generally longitudinally extending bore extending between a back end of said barrel nut to a front end of said barrel nut, said bore having internal threads to be secured at the back end to an externally threaded front end of the receiver, the front end of said bore being configured to receive a rear end portion of a firearm barrel therein; and a locknut having external threads that engage with the internal threads on the barrel nut bore, enabling the locknut to be received within and connected to the barrel nut, said locknut being configured to compressively engage and secure said firearm barrel in position against said receiver as said locknut is screwed into the barrel nut and secured with a preset torque value, a rotational orientation of said barrel nut about the barrel being independent of torque applied to said locknut; and a wrench with a body having an opening at one end with a plurality of teeth projecting from said opening configured to engage with grooves formed on a forward face of said locknut, the wrench being used to rotate and secure said locknut against an annular flange of the firearm barrel; and a fixture configured to receive the receiver of the firearm and the barrel nut and restrain both from rotational movement while said locknut is being torqued.