Precision Armament AR-15 1/2-28'' ACCU-WASHER SYSTEM STAINLESS STEEL SILVER A02119

These stainless steel washers are precisely machined to within .0001" to allow accurate indexing of muzzle brakes and flash hiders without the need for peel or crush washers. Set includes 18 individual washers of different thicknesses to allow 360 degree timing in 20 degree increments. Only one washer is needed for each application.