CMMG Dissent MK4 .300 AAC Blackout 10.5-Inch AR Pistol

Description

The CMMG Dissent MK4 is an AR pistol chambered in .300 AAC Blackout with a semi-automatic action and a 10.5 inch barrel. Its design includes an aluminum frame, a polymer grip, an adjustable gas block, and a left-side charging handle. We stock this configuration for shooters who want a compact AR-format platform built around the .300 AAC Blackout cartridge.

Key Specifications

• The pistol is chambered in .300 AAC Blackout for compatibility with that cartridge family.
• The firearm uses a semi-automatic action for its operating cycle.
• The barrel measures 10.5 inches and features threaded muzzle threads.
• The frame is made from aluminum, while the grip material is polymer.
• An adjustable gas block provides a gas-system adjustment feature.
• The pistol includes a TriggerTech AR-D trigger as an identified component.
• The muzzle uses 5/8-24 threads and includes a zeroed linear muzzle device.
• The configuration includes a left-side charging handle for manual operation.
• The pistol has an ambidextrous safety for safety-selector operation from either side.
• The listed package includes two magazines.

The Dissent MK4 uses a buffer-system-free design and includes a Picatinny rail end plate for rear-accessory compatibility. Its 10.5 inch barrel keeps the package compact, while the adjustable gas block and .300 AAC Blackout chambering define the platform’s configuration. The aluminum frame and polymer grip keep the construction details straightforward, and the AR-D trigger adds a specified component from TriggerTech. The result is a compact CMMG AR pistol with a focused set of controls and features.