CMMG Banshee MK4 Pistol .300 AAC Blackout 12.5″ 30+1

About this product

The CMMG Banshee MK4 is a compact AR-pattern pistol built for short-barrel utility and controllable performance in .300 AAC Blackout. It pairs a 12.50″ barrel with a 7″ EML M-LOK handguard and a coyote tan Cerakote aluminum receiver for a compact, weather-resistant package. Controls are CMMG Zeroed components including the pistol grip, drop-in trigger and a 60/90-degree ambidextrous safety to support fast, repeatable operation. The pistol ships with a 30-round Magpul magazine and a high-capacity configuration suited to close-range and short-barrel applications.

Key Specifications

• The action is Semi-Auto for standard AR-style operation.
• The caliber is .300 AAC Blackout.
• The barrel length is 12.50″.
• The barrel length range is listed as 12″ to 12.99″.
• The capacity is 30 + 1.
• The safety is a CMMG Zeroed 60/90 Degree ambidextrous selector.
• The grip material/configuration is CMMG Zeroed.
• The handguard is an EML 7″ M-LOK unit with full-length M-LOK slots on both sides and the bottom.
• The receiver finish is a Coyote Tan Cerakote Aluminum Picatinny Rail Receiver.
• Includes a 30rd Magpul magazine with the pistol.

Balanced for compact utility and straightforward handling, the Banshee MK4 delivers the short-barrel ergonomics and modular feature set expected from a modern AR-pattern pistol. Its combination of a 12.50″ barrel, M-LOK handguard and CMMG Zeroed controls makes it a practical option for shooters seeking a compact, configurable platform for short-range applications where compactness and controllability are priorities.

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