WCA Approved Birdcage Muzzle Brake/Flash Hider with 5 slots and solid bottom is designed in the standard A2 style with 1/2"x28 thread pitch. It's constructed of solid 4150 steel and has a high quality Black Phosphate finish. Fitted steel crush-washer not included.
Birdcage with 5 slots & solid bottom
Material: 4150 steel
Made in USA