Arm Or Ally 5.56 NATO 10.5" Government Profile Barrel

Arm Or Ally 5.56 NATO 10.5″ Government Profile Barrel

The Arm Or Ally 5.56 NATO 10.5″ Government Profile Barrel is a high-performance option for builders who demand reliability, accuracy, and value in a compact platform. Machined from durable 4150 Chrome Moly Vanadium (CMV) steel and finished with a deep black QPQ Nitride treatment, this barrel is built to resist corrosion and wear while delivering consistent performance shot after shot.

This 10.5″ barrel is configured with a carbine-length gas system for optimal cycling in short barrel rifle (SBR) builds or AR pistols. The M4 feed ramps ensure reliable chambering, while the .750 gas block journal offers compatibility with most standard low-profile gas blocks. M4 barrel extensions are torqued to spec after the nitriding process to maintain correct headspace and performance integrity.

If you’re looking for a duty-grade, American-made barrel to serve as the foundation for your AR-15 pistol or SBR project, the Arm Or Ally 5.56 NATO 10.5″ Government Profile Barrel is the one to trust—built with precision, durability, and affordability in mind.

Features:

• Caliber: 5.56 NATO
• Length: 10.5″
• Profile: Government
• Gas System: Carbine-length
• Gas Block Journal: .750
• Material: 4150 Chrome Moly Vanadium (CMV)
• Finish: QPQ Nitride inside and out
• Feed Ramps: M4
• Barrel Extension: M4, torqued after nitride
• Twist Rate: 1:7 for stabilizing a wide range of bullet weights
• Threaded Muzzle: 1/2×28 for standard muzzle devices or suppressors
• Made in the USA

If you’re planning a high-performance SBR or AR-15 pistol build, the Arm Or Ally 5.56 NATO 10.5″ Government Profile Barrel delivers the quality and performance you need—without breaking the bank.

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