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Product Info for CMMG AR 8.6mm Blackout Threaded Barrel

Kick off your 8.6 Blackout AR pistol or SBR build with a CMMG 12.5" barrel featuring our sleek, corrosion-resistant nitride finish. Compatible with CMMG Mk3 and DPMS Gen 1 High-Pattern LR-308 upper receivers.image

Accepts 0.750" diameter gas blocks.

Specifications for CMMG AR 8.6mm Blackout Threaded Barrel:

Manufacturer: CMMG
Color: Black
Finish: Nitride
Caliber: 8.6mm Blackout
Barrel Twist Rate: 1-3
Barrel Material: 4140 Chrome Moly Vanadium
Gun Make: CMMG
Gun Type: Rifle
Firearms Threads Per Inch: 5/8x24

Package Contents:

  • CMMG AR 8.6mm Blackout Threaded Barrel

CMMG AR 8.6mm Blackout Threaded Barrel Orderable Models

List of Orderable Models

  • CMMG MT 4140CM SBN 8.6 Blackout, Threaded Barrel, 16.1 inch, 33D190C , MPN: 33D190C , UPC: 810148628741 , Code: 2CM-ATB-CM16UR-33D190C
  • CMMG AR 8.6mm Blackout Threaded Barrel, 12.5in, Pistol Length, 1-3 Twist, 5/8x24, Nitride, Black MultiCam, 33D430C , MPN: 33D430C , UPC: 810148628734 , Code: 2CM-ATB-CM16UR-33D430C
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Last updated 2026-10-31 UTC.