Aero Precision AR-15 Crush Washer. Constructed from a phosphate coated steel, this Aero Precision crush washer is manufactured for AR-15 platform rifles chambered in .223 Rem and 5.56x45mm. This washer is the same included with VG6 muzzle breaks and acts as a replacement if that crush washer becomes damaged or misplaced. The washer is great as a spare or as an immediate replacement to keep the muzzle device of your AR properly installed.

Features:

Used Behind Flash Hider
Weight: .16 oz
Finish: Phosphate Coating