CMMG Barrel AR-15 300 AAC Blackout 1 in 7" Twist 16" Pistol Gas Port Chrome Moly Matte

Product #: 657614 CMMG #: 30DF80F UPC #: 815835011035
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  • Information
This CMMG 300 AAC Blackout Barrel features 1 in 7" twist rifling and a Pistol Length gas system. The muzzle is threaded 5/8"-24 for use with muzzle brakes, flash suppressors, or sound suppressors. Gas block and gas tube not included.

The Chrome Moly Steel Barrel is finished inside and out with CMMG's durable Weapons Armament Surface Protection (WASP) Melonite treatment. The WASP Melonite process surface-hardens the metal, extending barrel service life by reducing friction in the bore and lessening bore surface wear. Also referred to as Salt Bath Nitriding, this treatment produces an extremely hard, slick surface on steel that resists carbon adhesion and increases corrosion resistance, making for easier cleaning and maintenance. Nitriding converts the steel's surface without any build-up, retaining all of the benefits of traditional chrome lining without suffering the accuracy degradation commonly encountered due to uneven application of chrome inside the barrel's bore.

Technical Information
  • Length: 16"
  • Material: Chrome Moly Steel
  • Contour: Medium, Stepped
  • Chamber: 300 AAC Blckout
  • Twist Rate: 1 in 7"
  • Chrome Lined: No
  • Finish: WASP Melonite / Black Nitride
  • M4 Feed Ramps: Yes
  • Muzzle Thread Pattern: 5/8"-24
  • Gas Port Location: Pistol
  • Exterior Diameter at Gas Port: 0.936"
  • Suitable for use with Subsonic loads, either Suppressed or Unsuppressed
  • Use of Supersonic loads is NOT recommended with Pistol Gas Port Location

Please Note: An “AR-15 Pistol” barrel is less than 16” in length. Pistol barrels are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law.

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