CMMG Dissent MK4 .22 ARC 16.10in Upper Receiver, 6061-T6 Aluminum, M-LOK Rail 28B940CMB

SKU: FLX-164476

Vendor CMMG
Regular price $1,250.98
Sale price $1,250.98 Regular price $1,398.60
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Product Description

The CMMG DISSENT MK4 upper group in .22 ARC (Advanced Rifle Cartridge) is built to add modern performance and flexibility to Mil-Spec compatible lower receivers. This 16.10-inch upper features a 6061-T6 aluminum receiver and an M-LOK handguard for lightweight strength and accessory-ready capability. CMMG’s patent-pending direct impingement Compact Action design keeps the action and recoil assembly within the upper receiver, helping reduce overall length and eliminate the need for a traditional buffer tube when used with the included 1913 Picatinny rear end plate. A forward, non-reciprocating side charging handle supports fast manipulation, while the adjustable gas block helps tune the system for suppressed use or different ammunition.

Product Highlights

  • .22 ARC (Advanced Rifle Cartridge) DISSENT MK4 upper group designed for Mil-Spec compatible lowers
  • 16.10-inch barrel with 1:7 twist rate for optimized .22-caliber performance
  • Patent-pending direct impingement Compact Action stores recoil assembly in the upper for a more compact setup
  • Forward non-reciprocating side charger for quick operation without disrupting sight picture
  • Adjustable gas block and 1913 Picatinny rear end plate for suppression tuning and buffer-tube-free configurations

Specs

  • Brand: CMMG
  • Model: DISSENT MK4 Upper
  • Type: Complete Upper Receiver Group
  • Caliber: .22 ARC (Advanced Rifle Cartridge)
  • Barrel Length: 16.10 in
  • Twist Rate: 1:7
  • Receiver Material: 6061-T6 Aluminum
  • Handguard: M-LOK rail
  • Charging Handle: Forward, non-reciprocating side charger (left-side standard on direct-impingement models)
  • Gas System: Direct impingement with adjustable gas block
  • Rear Interface: 1913 Picatinny rear end plate
  • Finish/Color: Midnight Bronze (Cerakote)
  • Weight: 6.3 lb
  • MPN: 28B940CMB
  • UPC: 810148627492

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