Crush Washer (1/2 x 28) 5.56/.223
This crush washer is designed for AR15 flash hider or compensator installation on barrels with a 1/2x28 thread. This crush washer will fit every standard AR15 on the market chambered in 5.56/223.
NOTE: Crush washers are only intended to be used (1) time. Using a crush washer multiple times will decrease the effectiveness of the washer.
Made in the USA.