Factory replacement part for the AR-15, quality steel construction can be used either in conjunction with or in lieu of peel washers when mounting muzzle devices.
Gunsmithing Required: No
- Can be used in place of a peel washer to mount compensator/flashiders.
- Just place on barrel then thread on comp/flashider and torque to 15-20 ft-lbs, index
- 0.730" outside diameter
- 0.510" inside diameter
- AR-15 crush washers won’t work for a 300 Blackout. If you’re building a 300 Blackout, you'll need to use an AR-10 size washer