- 1/2x28 thread pitch for 223, 556, or 22
- The outside threads are 13/16-16
- Crush washer and Jam nut included
- Muzzle Brake is CNC machined heat treated steel
- Sleeves are hard anodized aluminum
- Brake with sleeve weighs 5.3 ounces
- Length is 3"
- Outside diameter is 1.22"
