The GrovTec GTHM319 Crush Washers are designed to be installed to secure muzzle devices with 1/2 x 28 thread pitch for .223 caliber rifles. This 5-pack features high quality steel construction with a premium black nitride finish. Crush washers are an essential component for any AR-15 platform rifle, providing reliable retention of muzzle brakes, flash hiders, and suppressors without permanent modification to your barrel.
These crush washers are engineered for .223 caliber compatibility with the standard 1/2 x 28 thread pattern, making them the ideal choice for securing aftermarket muzzle devices on most modern AR-15 rifles. The black nitride finish provides excellent corrosion resistance and durability in the field. With five washers included in each pack, you’ll have spares for multiple builds or replacement needs.
GrovTec crush washers offer a dependable, cost-effective solution for muzzle device installation. The durable steel construction and professional finish ensure these washers will perform consistently across countless shooting sessions.





