How To Install a Barrel Nut on AR Rifles
This video tutorial from AT3 Tactical demonstrates how to install a barrel nut on AR-15 and AR-style rifles in under five minutes. It covers the necessary tools, locking the upper receiver, installing the barrel, greasing and seasoning the barrel nut threads, torquing the nut, and installing the gas tube. The video is aimed at beginners looking to build their own AR rifles and aims to provide helpful, fact-driven information to the AR-15 community for safer firearm handling and building. AT3 Tactical is a Federal Firearms Licensee.








