AR-15 .308/7.62/300 BLK/6.8 5/8x24 Muzzle Device Crush Washer

crush washer allows you to properly time the muzzle brakes and flash hiders on your barrel, so that all ports are facing in the the right direction. This crush washer makes it easy to properly time or index your muzzle device and get the most performance out of it.

• Size: 5/8×24
• Color: Black
• Material: All Steel Construction