Aim Sports Steel Crush Washer for AR-15 .223 Rem/5.56 Rifle, Black, 12/pack - ACWA1

The AR-15 Crush Washer fits most barrel profiles and allows proper attachment of muzzle device and has 12 Pieces per pack. It ensures proper indexing of a flash hider or muzzle brake. AR-15 223/5.56 caliber crush washer insures proper indexing of muzzle brakes and flash hiders.Features:No gunsmithing requiredThread flash hider/muzzle brake and torque 15 to 20 lbEnsures proper indexing of flash hider/muzzle brake