CNC Machined High Quality Steel
Heat Treated
.223 / 5.56 Nato Shark Muzzle Brake
Side Ported And Ported On Top
Solid Machined Construction
Black Oxide Finish
Reduced Back Pressure
1/2"x28 Pitch Washer Included
Include FREE Crush Washer!!
Wraps around your threaded barrel and threads on 1/2"x28 thread pitch.
http://tacticalsolutionsgroupllc-com.3dcartstores.com/223-556-Nato-STEEL-Shark-Muzzle-Brake-12x28-Pitch-Thread-Free-Crush-Washer_p_23.html