LBE Unlimited ARCW-.308 Crush Washer 17-4 Stainless Steel Black 308 AR-10

The LBE Unlimited ARCW-.308 Crush Washer is a black 17-4 stainless steel crush washer built for installing muzzle devices on .308/7.62x51mm NATO AR-10 rifles. It sits between the barrel shoulder and the muzzle device, compressing as the device is torqued down so the device indexes correctly.

Constructed from 17-4 PH stainless steel, the washer offers high strength and corrosion resistance for repeated installs. The black finish blends with most AR-10 barrel and muzzle device finishes, and the standard 5/8x24 thread pitch matches the typical .308 AR-10 muzzle thread.

Use the ARCW-.308 when mounting flash hiders, muzzle brakes, or compensators on a .308 AR-10 barrel. Torque the device against the washer, rotate it to orient any top port or top slot to your preferred angle, and the washer deforms to lock the device in place once it makes contact with the barrel shoulder.