GrovTec .223/5.56 Crush Washer
Designed To Be Installed To Secure Muzzle Devices
1/2 X 28 Thread Pitch For .223 Caliber
High Quality Steel Construction
Premium Black Nitride Finish
Sightmark .223/5.56 Bore Sight
Precision accuracy
Reliable and durable
Fastest gun zeroing and sighting system
Reduce wasted cartridges and shells
Compact and lightweight