1/2 x 28 Crush Washer - .22LR / .223 / 5.56 / 9mm These Crush Washers are crafted from specially engineered, heat-treated steel, achieving a fine balance between high spring rate and ductility to...
1/2 x 28 Crush Washer - .22LR / .223 / 5.56 / 9mm These Crush Washers are crafted from specially engineered, heat-treated steel, achieving a fine balance between high spring rate and ductility to fulfill the functional requirement of being crushed without cracking.Designed for the installation of AR-15 flash hiders, muzzle brakes, or compensators on barrels with 1/2x28 threading, this Crush Washer is compatible with every standard AR-15 on the market chambered in 5.56/.223. It is also suitable...