Advanced Technology AR-15 .223/5.56 Steel Crush Washer 5-Pack - Black Oxide

The Advanced Technology AR-15 Steel Crush Washer 5-Pack is a convenient multi-pack of premium steel crush washers designed for use with .223 Remington / 5.56 NATO muzzle devices on the AR-15 platform. Each washer is machined from durable steel and finished in a protective black oxide coating that resists corrosion and blends with most factory and aftermarket barrel and muzzle device finishes.

Crush washers seat the muzzle device squarely against the shoulder of the barrel and allow proper timing and alignment of compensators, flash hiders, and muzzle brakes. These washers are designed to fit over standard 1/2x28 muzzle threads, the common thread pitch for .223/5.56 AR-15 barrels, and are sized to deform cleanly under torque for a precise, indexed fit.

This listing includes a 5-pack of crush washers, giving builders and armorers a ready supply for multiple builds, replacements, or on-the-spot re-indexing in the shop. Whether you are installing a new muzzle device or correcting the timing on an existing one, this pack keeps the right washer on hand for the job.