Dmndbk Bbl 556 16" Carb Med 1/9 Blk

The Diamondback Barrels 556 16" carbine barrel is a professional-grade component purpose-built for modern sporting rifle platforms and duty-cycle AR-pattern firearms. Designed for operators, tactical shooters, and law enforcement personnel who demand reliability under sustained fire, this barrel combines precision manufacturing with proven metallurgy to deliver consistent accuracy across training, competition, and operational deployment. At 16 inches, it balances velocity retention with maneuverability—ideal for close-quarters work without sacrificing effective range.

Machined from 4140 chromoly steel and finished with mil-spec black nitride coating, this barrel resists corrosion, fouling buildup, and premature throat erosion—critical for weapons cycling thousands of rounds in varied environments. The 1:9 twist rate stabilizes standard 55–62-grain 5.56 NATO projectiles across practical shooting distances, while the carbine-length gas system reduces bolt carrier group stress and extends component service life compared to mid-length alternatives. The medium profile provides a balance between weight savings (1.81 lbs) and stiffness, minimizing harmonic vibration that degrades precision at distance.

This barrel integrates seamlessly into any direct impingement AR-15 or M4-pattern rifle with standard 0.750" gas block mounting and 1/2x28 threading for sound suppressors or muzzle devices. Field installation requires basic armorer-level knowledge; stress-relieved contours maintain zero stability through repeated disassembly cycles. Whether deployed for duty, training, or competitive use, the Diamondback Barrels 556 16" carbine barrel delivers the precision, durability, and maintainability that professional shooters expect.