Home / Gun Parts / CMMG / CMMG DISSENT Mk4 300BLK 14.5in P&W Upper Receiver 1-7 Twist 5/8 X 24 TPI .750in 23.6in Tungsten
CMMG DISSENT Mk4 300BLK 14.5in P&W Upper Receiver 1-7 Twist 5/8 X 24 TPI .750in 23.6in Tungsten

CMMG DISSENT Mk4 300BLK 14.5in P&W Upper Receiver 1-7 Twist 5/8 X 24 TPI .750in 23.6in Tungsten

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$1,208.07
MSRP
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Updated
Apr 25, 2026

Specifications

Brand
MPN
30BA30FTNG
UPC
810148621742

Description

CMMG DISSENT Mk4 300BLK 14.5in P&W Upper Receiver 1-7 Twist 5/8 X 24 TPI .750in 23.6in Tungsten. 5" 300BLK upper group. Although the barrel is only 14.5" long this upper comes with the ZEROED SVD brake pinned and welded to the end bringing the total length to 16.1" allowing the use of stocks and braces without having to SBR anything. Utilizing our patent pending direct impingement Compact Action DISSENT upper groups house the entire action and recoil assembly in the upper receiver resulting in less bulk and length than traditional ARs. The forward non-reciprocating side charger allows for quick bolt operation without coming off target. Direct impingement DISSENTS come equipped with a left side charger standard. Right side charging handles for DI models are available here. All DISSENT Upper groups include a lower receiver end plate and choice of adapter including: 1913 Picatinny rail buffer tube adapter or DISSENT folding stock. DISSENT Upper groups are available in your choice from seven Cerakote finish options or hard coat anodized. Specifications for CMMG DISSENT Mk4 300BLK 14.5in P&W Upper Receiver: Manufacturer: CMMG Caliber: .300 AAC Blackout Overall Length: 23.6 in Barrel Length: 14.5 in Barrel Twist Rate: 1-7 Firearms Threads Per Inch: 5/8x24 Muzzle Device: CMMG Zeroed Muzzle Brake Finish: Cerakote Fabric/Material: Aluminum Gas Block Journal Size-Diameter: .750 in Gun Rail: M-LOK Weight: 4 lb Magazine Included: No Package Contents: CMMG DISSENT Mk4 300BLK 14.5in P&W Upper Receiver CMMG 30BA30F-TNG: DISSENT Mk4 300BLK 14.5in P&W Upper Receiver 1-7 Twist 5/8 X 24 TPI .750in 23.6in Tungsten
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