Skip to main content

Sign In / Enroll

Get rewarded!


Sign In / Enroll

Get rewarded!

A woman outside with a dog
A woman outside with a dog

CMMG Dissent MK4 Upper for AR-Platform, 6.50 in., 300, Blackout, Left Side Charging Handle, Armor, Black, Zeroed Linear Comp

Shop all CMMG
CMMG Dissent MK4 Upper for AR-Platform, 6.50 in., 300, Blackout, Left Side Charging Handle, Armor, Black, Zeroed Linear Comp

Item # 6092640

CMMG CMMG Dissent MK4 Upper for AR-Platform, 6.50 in., 300, Blackout, Left Side Charging Handle, Armor, Black, Zeroed Linear Comp
CMMG CMMG Dissent MK4 Upper for AR-Platform, 6.50 in., 300, Blackout, Left Side Charging Handle, Armor, Black, Zeroed Linear Comp
$1399.99
CMMG Dissent MK4 Upper for AR-Platform, 6.50 in., 300, Blackout, Left Side Charging Handle, Armor, Black, Zeroed Linear Comp

Item # 6092640

CMMG CMMG Dissent MK4 Upper for AR-Platform, 6.50 in., 300, Blackout, Left Side Charging Handle, Armor, Black, Zeroed Linear Comp
CMMG CMMG Dissent MK4 Upper for AR-Platform, 6.50 in., 300, Blackout, Left Side Charging Handle, Armor, Black, Zeroed Linear Comp
$1399.99

Its no secret that pistol stabilizing braces have been a target for scrutiny over the years, and those that enjoy building their own AR pistols have wondered what will come out of all the uncertainty. DISSENT is CMMG's answer. Utilizing CMMG's patent pending Compact Action and Radial Delayed Blowback technology with fixed ejector, DISSENT upper group houses the entire action and recoil assembly in the upper receiver, resulting in less bulk and length than traditional AR pistols. The forward non-reciprocating side charger allows for quick bolt operation without coming off target. DISSENT Upper groups include a 1913 Picatinny rail end plate to use in place of the lower receiver buffer tube.

  • Pistol stabilizing braces have been under scrutiny for years, creating uncertainty for builders of homemade AR pistols.
  • CMMG's response is called DISSENT.
  • DISSENT uses CMMG's patent-pending Compact Action and Radial Delayed Blowback technology.
  • It uses a fixed ejector.
  • The DISSENT upper group places the entire action and recoil assembly inside the upper receiver.
  • This design is intended to be less bulky and shorter than traditional AR pistols.
  • It features a forward non-reciprocating side charger for quick bolt operation while staying on target.
  • The DISSENT upper group includes a 1913 Picatinny rail end plate intended to replace the lower receiver buffer tube.
  • Firearm Fitment: AR-Platform
  • Barrel Finish: Black
  • Barrel Length: 6.50"
  • Barrel Length Range: 6" to 6.99"
  • Caliber: 300 Blackout
  • Firearm Type: AR Platform
  • Gun Platform: AR Style
  • Handguard Finish: Black
  • Handguards: M-LOK
  • Muzzle: Linear Compensator
  • Receiver Finish: Black Armor Cerakote
  • Receiver Material: Aluminum
  • Thread Pattern: 5/8"x24
  • Twist: 1:10"