AR-10/ 308 AR Barrel nut removal – rifleshooter.com

AR-10/ 308 AR Barrel nut removal – rifleshooter.com



Installation and removal of the barrel nut is the highest torque operation on an AR0-15/M16 M4, AR-10, 308 AR type rifle.  For this to be successfully accomplished, the upper receiver needs to be properly secured.

While upper receiver blocks for the AR-15/M16 M4 series of rifles are shop staples, many shops may not have access to upper receiver blocks for an AR-10/308 AR.  Even if they do, with the wide range of upper receiver designs, use of the wrong blocks can possibly damage the finish.  If you don’t have the right blocks, don’t worry, you can always remove a barrel nut with a barrel vise.

The contents of Rifleshooter.com are produced for informational purposes only and should be performed by competent gunsmiths only. Rifleshooter.com and its authors, do not assume any responsibility, directly or indirectly for the safety of the readers attempting to follow any instructions or perform any of the tasks shown, or the use or misuse of any information contained herein, on this website.

Any modifications made to a firearm should be made by a licensed gunsmith. Failure to do so may void warranties and result in an unsafe firearm and may cause injury or death.

Modifications to a firearm may result in personal injury or death, cause the firearm to not function properly, or malfunction, and cause the firearm to become unsafe.

We recently had a Cerakoted upper that we didn’t want to mark up come through the shop.  Rather than risk damaging the finish, we decided to grab the upper by the barrel (below).

I used our Farrell Barrel vise in the shop press to grab the barrel.  This allowed easy removal of the barrel nut for a repair (the rifle was manufactured without a ejection port cover in place, installation required removal of the barrel).  Note I used some white paper as a shim between the barrel and aluminum to prevent marring the surface. I also needed to invert the top jaw of the vise so I would be small enough to grab the AR-10 barrel.

You can purchase the Farrell Barrel Vise from Brownells.





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