FightLite Industries BBL006 Barrel Assembly Features The Fightlite Industries BBL006 barrel assembly is built around a 12.5 inch heavy profile barrel chambered in 5.56x45mm NATO sized to handle sustained fire without the heat-related accuracy drop a lighter contour would suffer. The 1:7 right-hand twist stabilizes a wide range of 5.56 bullet weights from lighter varmint loads up to heavier match projectiles. A mid-length gas system paired with a 4 position adjustable regulator lets the shooter tune gas flow to match different ammunition and suppressor use improving reliability and reducing felt recoil. The barrel extension ships with fixed headspace already set simplifying installation onto a compatible MCR or Shrike upper. A manganese phosphate finish on the steel barrel resists corrosion and wear while keeping a low-visibility matte black appearance. The assembly includes a gas block piston flash hider and dovetail cover giving the builder nearly every component needed for a complete top end in one package. Made entirely in the USA the BBL006 is engineered specifically to work with Fightlite s MCR and Shrike rifles and upper receiver assemblies rather than as a generic AR part. For owners of those platforms who want a heavier adjustable-gas barrel for sustained fire or suppressed use the Fightlite Industries BBL006 is available for sale at GrabAGun. FightLite Industries BBL006 Barrel Assembly Specifications Manufacturer: FightLite Industries Model: BBL006 Barrel Assembly Caliber: 5.56 Barrel Length: 12.50 Barrel Contour: Heavy Barrel Finish: Manganese Phosphate Barrel Material: Steel Gas System Length: Mid-Length Twist Rate: 1:7 Muzzle: Flash Hider Muzzle Thread Pitch: 1/2x28 Color: Black Sights: Adjustable Available At: GrabAGun