10.5" .300 Blackout Complete Barrel Assembly

10.5" .300 BLACKOUT COMPLETE BARREL ASSEMBLY

Build or upgrade your AR-15 pistol with the 10.5" .300 Blackout Complete Barrel Assembly. Designed for optimal performance with both subsonic and supersonic loads, this complete drop-in barrel assembly comes pre-equipped with a low-profile gas block, pistol gas tube, and A2 flash hider for immediate installation.

At the core is a 10.5" 4150 Chrome Moly Vanadium steel barrel featuring a light HBAR profile, M4 feed ramps, and a versatile 1:8 twist rate to ensure superior bullet stabilization across various grain weights. Finished inside and out with a protective black nitride coating, it provides exceptional corrosion resistance and barrel life. The muzzle is threaded at 5/8x24 TPI and comes complete with a steel A2 birdcage flash hider and crush washer.

The assembly features a factory-aligned .750 low-profile gas block machined from tool steel and finished in black oxide. Its minimal footprint fits smoothly under extended free-float M-LOK handguards without clearance issues. Paired with a pistol-length Mil-Spec 304 stainless steel gas tube, this system guarantees proper gas pressure and smooth cycling.

Key Features:

• Made in the USA: Machined and assembled using high-grade American materials for exact tolerances.
• 10.5" 4150 Nitride Barrel: Light HBAR profile chambered in .300 Blackout (7.62x35) with spiral engraved markings.
• 1:8 Twist Rate: Optimized twist dynamics for stabilizing both heavy subsonic and fast supersonic rounds.
• Complete Gas System: Includes a .750 low-profile steel gas block and Mil-Spec 304 stainless steel pistol gas tube with roll pin.
• A2 Flash Hider Included: Standard 1 3/4" A2 birdcage flash suppressor (5/8x24 thread) with crush washer installed.
• M4 Feed Ramps: Precision-cut extension ramps ensure smooth, continuous feeding.