Black Dirt Riflework's Stainless A2 "Bird Cage" device is manufactured to exactly the same dimensions as the standard issue muzzle device found on most U.S. military issue M4 / M16 rifles and threaded in 5/8 x 24" for AR10 & 30 caliber rifles.
- Stainless A2 "Bird Cage" Style muzzle device for 5/8" X 24 Threaded Barrels.
- 17-4ph® Heat Treated Stainless Steel
- Natural Stainless Finish
- Includes Stainless Crush Waxher