Grovtec 5/8 Inch Crush Washers This five pack of Grovtec's 5/8 inch crush washers work great for your .30 caliber muzzle devices. These washers secure your muzzle device on barrels...
Pick up a set of Grovtec’s 5/8 inch crush washers for your AR-10 chambered in 6.5 Creedmoor.