Description
The Faxon 10.5″ 300 Blackout Gunner Barrel with Pinned Gas Block removes the hardest part of short-barrel builds: correctly pinning the gas block. We pre-notch the journal, drill the block, and include the pin—so your gas system won’t shift or loosen under fire.Built from 4150 CMV steel with a nitride finish, this Gunner profile blends Gov’t durability with Pencil-like weight savings for superb handling. Pistol-length gas optimizes function with both supers and subs (especially suppressed), while 1:8 twist stabilizes a wide range of 300 BLK projectiles.
Key Benefits
- Factory-pinned .750″ gas block: Pre-drilled and aligned for maximum security and easy installation.
- Gunner profile balance: Gov’t strength with Pencil weight for faster transitions and reduced fatigue.
- Pistol-length gas: Reliable cycling with subsonic and supersonic 300 BLK, ideal for suppressed builds.
- Duty-ready construction: 4150 CMV, button-rifled 1:8, and QPQ nitride inside & out.
- Precision QC: Stress relieved, air-gauge tested, MPI-inspected, and headspace verified in-house.
Specifications
- Barrel Material: 4150 CMV
- Barrel Type: Button Rifled
- Barrel Caliber: 300 BLK
- Barrel Twist: 1:8
- Barrel Length: 10.5”
- Barrel Profile: GUNNER
- Barrel Gas System: Pistol
- Inside Finish: Nitride
- Outside Finish: Nitride
- Muzzle Thread: 5/8×24
- Gas Block Diameter: .750″
- Gas Block Journal Length: 1.9″
- Barrel Extension: M4
- Weight: 1.10 lbs
- Magnetic Particle Inspected
- 11-degree Target Crown
