Faxon’s 300 Blackout Match Series Gunner 7.5" barrel is purpose-built for short-barrel performance and serious shooters who demand consistency in compact platforms. The faster 1:5 twist rate increases stabilization and energy transfer for heavy subsonic projectiles while still performing exceptionally with supersonic loads—making it ideal for suppressed and unsuppressed builds that need reliable terminal performance from a short package. The Gunner profile blends the durability of GOVT/SOCOM with the weight savings and maneuverability of a pencil contour, bringing balance back toward the shooter for all-day comfort and reduced fatigue in the field.
Manufactured in Greater Cincinnati, Ohio, every barrel is stress-relieved, air-gauge tested, and MPI-inspected during production. Built from 416-R stainless with precision 5R button rifling and a recessed 11° target crown, these barrels finish with a nitride inside/outside treatment and feature an NP3 barrel extension for long service life and smooth feeding. The .750" gas journal and 1.9" gas-block journal length suit pistol-length gas systems, and the 5/8x24 muzzle thread accepts common suppressors and muzzle devices.
Specifications:
-
Caliber: 300 BLK
-
Barrel Length: 7.5"
-
Twist Rate: 1:5 (optimized for subsonic stabilization)
-
Barrel Material: 416-R Stainless Steel
-
Rifling: Button Rifled — 5R
-
Profile: Gunner (GOVT/SOCOM × Pencil blend)
-
Gas System: Pistol-length
-
Gas Block Diameter: .750"
-
Gas Block Journal Length: 1.9"
-
Muzzle Thread: 5/8x24
-
Barrel Extension: M4 with NP3 (Nickel Teflon) finish
-
Inside/Outside Finish: Nitride
-
Weight: 0.89 lbs
-
Crown: Recessed target crown (11°)
-
Inspection/Testing: Magnetic Particle Inspected (MPI); headspace checked with hardened PTG gauges
-
Additional: Shot-peened/superfinished processes and full production Q/A
Get it at Battlehawk Armory!



FFL Required
Secure Online Ordering
Fast Shipping
Trusted Retailer