Adv Tech Ar15 223/5.56 C Wshr 5pk

The Advanced Technology AR-15 223/5.56 Crush Washer 5 Pack is a precision-engineered spacer designed to fit AR-15 platforms with 1/2"-28 threaded muzzles. Crush washers serve as critical muzzle device spacers, ensuring proper timing and alignment when installing flash hiders, muzzle brakes, or compensators on .223/5.56 rifles. This five-pack provides multiple crush washers for outfitting multiple uppers or maintaining inventory for field replacements and maintenance cycles.

Crush washers are installed between the barrel's muzzle crown and the threaded muzzle device. As the device is tightened, the washer compresses against the barrel shoulder, creating a tight, repeatable fit that eliminates gap tolerance and locks the muzzle device in indexed position. The 1/2"-28 thread pitch is the mil-spec standard for AR-15 platforms firing .223 Remington and 5.56×45mm NATO. Advanced Technology's design ensures consistent performance across multiple installation cycles, critical for shooters who regularly swap muzzle devices or upgrade suppressors and compensators.

This five-pack is essential for serious AR-15 operators, gunsmiths, armorer teams, and competitive shooters who maintain multiple uppers or frequently reconfigure their platforms. Each crush washer is a consumable component—once compressed during installation, it cannot be reliably reused. Having spares on hand prevents delays when changing muzzle devices during training, tactical reconfiguration, or range work. These washers are also recommended for backup inventory on duty rifles and during platform maintenance or upper receiver swaps.