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CMMG MK4
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

CMMG

MK4

$1,849.95
Low Stock (2 left)
California DOJ roster CA DOJ Roster

This handgun is not listed as California compliant under the California handgun roster.

CMMG MK4, DISSENT, Semi-automatic Pistol, AR, 300 Blackout, 10.5" Threaded Barrel, 5/8X24, CMMG Zeroed Linear Compensator, Cerakote Finish, Armor Black, TriggerTech AR-D 2-Stage Trigger, 9.6" M-LOK Handguard, CMMG Zeroed Polymer Grip, 30 Rounds, 2 Magazines 30AC278-AB

Key Details
Brand CMMG
Manufacturer Part Number 30AC278-AB
UPC 810097509641
SKU CMMG30AC278-AB
Current Stock 2 available
Quantity Updated Apr 10, 2026 10:05 PM
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Purchase Requirements
  • This product requires FFL processing before pickup or transfer.
  • Age verification is required before checkout completion.
  • California compliance or distributor restriction review may apply.
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

Some cartridges require longer barrels to realize their full ballistic capabilities, but not 300 Blackout. Outfitted with a 10.5" barrel, this DISSENT takes full advantage of almost any 300BLK loading you can think of while remaining ultra-compact and portable by eliminating the buffer system found on a conventional AR15. At the rear is a 1913 picatinny rail end plate allowing shooters to pick a accessories that suits their needs and style. 300 BLK is an incredibly adaptable cartridge with different loadings for specific uses, like suppressed. With the adjustable gas block on each 300 BLK DISSENT you can fine tune the gas system to best suit the supersonic or subsonic ammo loadings you like best. TriggerTech's AR-D trigger was developed in collaboration with CMMG to be fully optimized for use with DISSENT firearms and upper receiver groups. With a 4 lb pull weight, the AR-D trigger showcases a light, repeatable break.

Features
  • Armor Black Cerakote
  • 5/8X24 Muzzle Threading
  • 7075 T6 Aluminum Construction
  • M-LOK Free Float Handguard
  • CMMG Zeroed Furniture
  • TriggerTech Two Stage Trigger
  • CMMG Pistol Tube
Specifications
UPC: 810097509641
Manufacturer: CMMG
Manufacturer Part #: 30AC278-AB
Model: MK4
Model (Alt): DISSENT
Action: Semi-automatic
Barrel Length: 10.5"
Capacity: 30 Rounds
Finish: Cerakote
Grips: Polymer
Safety: Manual Safety
Type: AR