AR15 Barrels – 5.56, 1:7, Carbine Length Gas, 10.5″

AR15 barrels are made from 4150 Chrome Moly Vanadium, coated in H&M Blacknitride+™ for increased wear resistance, chambered in 5.56 NATO ammo.

CMC incorporated input received from military, law enforcement and civilian shooters into the engineering of their AR15 barrels to accommodate modern-day shooting requirements. Every barrel is precision, instrument-inspected for absolute straightness and air gauged for maximum uniformity, yielding the highest accuracy possible. Land and groove tolerance from breech to muzzle can vary only .0001″ for the best concentricity.

With a Carbine length gas system, M4 feed ramps for reliability, a 1:7″ twist rate, 1/2″x28 thread pattern to fit standard AR-15 muzzle devices, 11 degree match crown for increased accuracy and a bottom dimple is added for easy install and alignment of gas blocks.

CMC AR15 barrels are then coated in H&M Blacknitride+™ or Ferritic Nitrocarburizing, resulting in significantly improved surface properties on ferrous metal parts while maintaining dimensional and shape stability. H&M Blacknitride+™ yields increased wear resistance, improved fatigue strength, better corrosion resistance, improved lubricity, and enhanced cosmetic appeal.

Features of AR15 barrels:

• Carbine length gas system
• 1:7″ twist rate
• M4 feed ramps for reliability
• Air Gauged tested for consistency
• 1/2″x28 thread pattern to fit standard AR-15 muzzle devices
• 11° match crown for increased accuracy
• bottom dimple for easy gas block install and alignment

Technical Specs of AR15 barrels:

• Barrel Length: 10.5″
• Barrel Profile: SOCOM
• Barrel Material: 4150 Chrome Moly Vanadium
• Barrel Type: Button Rifled
• Barrel Coating: H&M Blacknitride+™
• Barrel Caliber: 5.56
• Barrel Gas System: Carbine
• Barrel Twist: 1:7
• Barrel Extension: M4 Type Feed Ramps
• Gas Block Diameter: .750″
• Gas Block Journal Length: 1.13″
• Muzzle Thread: 1/2-28 TPI
• Air Gauged
• Weight: 1.5 lbs

All NFA/ATF Rules Apply AR15 barrels

You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel, along with a Non-NFA lower receiver, is prohibited, except when installed on a Pistol configuration firearm.