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Customer Reviews
Helpful Positive Review
My second dissent upper by Rich, Verified Owner, February 14, 2025
Love this thing. Shipping was slightly delayed but no issue. Team helped and stayed in contact throughout the process. Now I need the 8.6 blackout upper
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Product Info for CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver

Built around the .308 cartridge, the CMMG Mk3 platform is the larger frame foundation for cartridges such as .308 Win. The shorter barrel is for those who are not wanting the longer rifle length.image

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.

All DISSENT Upper groups include a 1913 Picatinny rail end plate to use in place of the lower receiver buffer tube. Upper groups are available in your choice from seven Cerakote finish options.

Specifications for CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver:

Manufacturer: CMMG
Caliber: .308 Winchester
Barrel Length: 16.1 in
Barrel Twist Rate: 1-10
Threads per Inch: 5/8x24
Muzzle Device: ZEROED Muzzle Brake
Finish: Cerakote/Hard Coat Anodize
Gun Type: Rifle
Gun Make: CMMG
Gun Model: CMMG Mk3
Weight: 5.5 lb
Barrel Material: 4140 Chrome Moly Vanadium

Features of CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver

  • Adjustable Gas Block
  • Lifetime Quality Guarantee

Package Contents:

  • CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver

CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver Orderable Models

List of Orderable Models

  • CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver, 1-10 Twist, 5/8 x 24, CMMG ZEROED Muzzle Brake, Cerakote/Hard Coat Anodized, Tungsten, 38B710C-TNG , MPN: 38B710C-TNG , UPC: 810148628475 , Code: 2CM-URC-CM12UR-38B710C-TNG
  • CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver, 1-10 Twist, 5/8 x 24, CMMG ZEROED Muzzle Brake, Cerakote/Hard Coat Anodized, Midnight Bronze, 38B710C-MB , MPN: 38B710C-MB , UPC: 810148628444 , Code: 2CM-URC-CM12UR-38B710C-MB
  • CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver, 1-10 Twist, 5/8 x 24, CMMG ZEROED Muzzle Brake, Cerakote/Hard Coat Anodized, Coyote Tan, 38B710C-CT , MPN: 38B710C-CT , UPC: 810148628437 , Code: 2CM-URC-CM12UR-38B710C-CT
  • CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver, 1-10 Twist, 5/8 x 24, CMMG ZEROED Muzzle Brake, Cerakote/Hard Coat Anodized, Armor Black, 38B710C-AB , MPN: 38B710C-AB , UPC: 810148628413 , Code: 2CM-URC-CM12UR-38B710C-AB

CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver, 1-10 Twist, 5/8 x 24, CMMG ZEROED Muzzle Brake, Cerakote/Hard Coat Anodized, 38B710C-HCA , MPN: 38B710C-HCA , UPC: 810148628482 , Code: 2CM-URC-CM12UR-38B710C-HCA
  • CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver, 1-10 Twist, 5/8 x 24, CMMG ZEROED Muzzle Brake, Cerakote/Hard Coat Anodized, Charcoal Green, 38B710C-CG , MPN: 38B710C-CG , UPC: 810148628420 , Code: 2CM-URC-CM12UR-38B710C-CG
  • CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver, 1-10 Twist, 5/8 x 24, CMMG ZEROED Muzzle Brake, Cerakote/Hard Coat Anodized, Sniper Grey, 38B710C-SG , MPN: 38B710C-SG , UPC: 810148628451 , Code: 2CM-URC-CM12UR-38B710C-SG
  • CMMG Dissent, Mk3, .308 Winchester, 16.1 inch Upper Receiver, 1-10 Twist, 5/8 x 24, CMMG ZEROED Muzzle Brake, Cerakote/Hard Coat Anodized, Titanium, 38B710C-TI , MPN: 38B710C-TI , UPC: 810148628468 , Code: 2CM-URC-CM12UR-38B710C-TI
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