TacFire AR-15 Muzzle Brake Crush Washer Features The Tacfire AR-15 Muzzle Brake Crush Washers are machined from steel and finished in black oxide giving them the durability needed to compress properly and hold a muzzle device in correct timed alignment. Each washer is sized to fit standard 1/2 inch threaded muzzles covering the most common thread pitch found on AR-15 pattern rifles chambered in 5.56 and .223. A crush washer is a consumable part that deforms slightly each time it is torqued down so having a stock of spares on hand saves a trip to the parts bin every time a muzzle device is swapped. The black oxide finish keeps the washer s appearance consistent with most black AR-15 muzzle hardware. Packaged 10 to a set this quantity gives shooters gunsmiths and range builders enough washers for several installations without needing to reorder immediately. Keeping spares in a range bag or tool box means a muzzle device change or brake swap can happen without delay when a washer gets over-crushed or damaged. Made in the USA these washers are backed by a manufacturer limited warranty for peace of mind on a small but important part of any muzzle device installation. The Tacfire AR-15 Muzzle Brake Crush Washers give AR-15 owners a simple dependable supply of a commonly needed consumable part. TacFire AR-15 Muzzle Brake Crush Washer Specifications Manufacturer: TacFire Type: Crush Washer Compatible Hosts: AR-15 Material: Steel Finish: Black Oxide Color: Black Quantity: 10 Country of Origin: USA Warranty: Mfg Limited Available At: GrabAGun