SKU: CMMG30AC278
UPC: 810097509641
MPN: 30AC278-AB
The CMMG Dissent Mk4 300blk 10.5" 30-Round Threaded Barrel Pistol is purpose-built for operators who demand a compact, modular platform optimized for subsonic ammunition and suppressed fire. Whether serving in law enforcement tactical units, private security, or serious civilian defense roles, this 300 Blackout pistol delivers effective terminal performance at close quarters where traditional rifle calibers prove excessive. The 10.5-inch barrel length balances velocity retention with portability, making it ideal for vehicle interdiction, close-quarters battle, or home defense scenarios where maneuverability trumps extended standoff range.
Built on CMMG's proven Dissent platform, this pistol features a fully threaded barrel engineered for direct-thread suppressor mounting, allowing seamless integration with .30-caliber suppressors for signature reduction without additional adapters. The 300 Blackout chambering excels with subsonic ammunition—delivering rifle-class energy while maintaining supersonic capability when needed. At 8.31 lbs, the gun handles predictably in dynamic environments; the 30-round magazine capacity provides sustained engagement capability in high-stress situations. The modular design allows field-stripping for maintenance and parts compatibility with standard AR-15 components, streamlining logistics for teams operating multiple platforms.
This platform benefits tactical professionals operating in confined spaces—vehicle assaults, building entries, or environments where collateral concern demands controlled energy transfer. The threaded barrel eliminates the need for proprietary suppressor interfaces, allowing integration with commercially available .30-caliber cans. Magazine compatibility and ergonomic controls mirror standard AR-15 training, reducing operator transition time. Compliance verification with local and federal NFA regulations regarding pistol classification is the end user's responsibility; this firearm is classified as a pistol and requires appropriate registration where mandated by law.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.