The Advanced Technology (ATI) AR-15 Steel Crush Washer 5-Pack (part no. A.5.10.2253) keeps a spare supply of crush washers on hand for every muzzle device swap on a 1/2-28 threaded .223/5.56 barrel. A crush washer seats a muzzle brake or flash hider at the correct clocked orientation and should be replaced, not reused, each time a device is removed and reinstalled.

Key Specifications

• Sized for 1/2-28 threads, the standard .223/5.56 AR-15 muzzle thread pitch.
• Made from steel for a durable, single-use crush washer.
• Finished in black to match standard AR-15 muzzle hardware.
• Sold as a 5-pack, giving enough spares for multiple muzzle device installs.
• Used to seat a muzzle brake or flash hider at the correct clocked orientation.

Frequently Asked Questions

Can a crush washer be reused? No, a crush washer is designed to deform once for a proper seal and should be replaced each time a muzzle device is removed.

What thread size is this washer for? 1/2-28, the standard .223/5.56 AR-15 muzzle thread pitch.

How many washers come in a pack? Five washers per pack.

Buy the ATI AR-15 Steel Crush Washers

Order this 5-pack from our gun parts and accessories selection and keep a spare crush washer on hand for your next muzzle device swap. Order it from our Lubbock, Texas gun shop for fast, insured shipping.