- .936 Micro/Low profile Gas Block
- QpQ Nitride Treated
- Machined from 4140
- Extreme corrosion resistance & made for extreme use.
- Mounts securely to your barrel with two stainless steel set screws instead of using a flimsy clamp on system.
- Includes: Gas Block and Set Screws
- (This Gas Block works with our 556 NATO 5.9 inch Siphon AGP Barrel and 300 Blackout 5.9 inch Siphon AGP Barrel) all others use .750)