CMMG ZEROED BANSHEE Mk4 .300 Blackout 6.5″ Barrel AR-15 Pistol with Integrated Suppressor

The CMMG ZEROED BANSHEE Mk4 is a .300 Blackout AR-15 pistol built around an integrated suppressor system. Chambered in .300 BLK, the Mk4 platform features a 6.5-inch barrel with a 1:7 twist rate and a direct impingement operating system. The defining element of the ZEROED configuration is the ZEROED 30 suppressor, which is housed within a 10-inch M-LOK handguard designed to accommodate suppressors up to 1.5 inches in diameter, keeping the overall package compact relative to the barrel length.

Key Features

• 6.5-inch barrel chambered in .300 BLK with a 1:7 twist rate
• Direct impingement operating system on the Mk4 platform
• ZEROED 30 integrated suppressor housed within a 10-inch M-LOK handguard; accommodates suppressors up to 1.5 inches in diameter
• Ambidextrous ZEROED controls including charging handle, single-stage drop-in trigger, 60/90-degree ambidextrous safety selector, and pistol grip
• Mk4 billet 6061-T6 aluminum upper receiver and Mk4 forged 7075-T6 aluminum lower receiver, both finished in Cerakote
• .750 adjustable gas block
• CMMG RipBrace with FASTBACK 6-position receiver extension
• Weight: 6.1 lbs; overall length: 27–29.5 inches
• Backed by CMMG's Lifetime Quality Guarantee against material and workmanship defects

The upper receiver is machined from billet 6061-T6 aluminum and the lower from forged 7075-T6 aluminum, with both finished in Cerakote. The ambidextrous control suite—charging handle, safety selector, and pistol grip—is included as part of the ZEROED package. The CMMG RipBrace mounts to a FASTBACK 6-position receiver extension.

ICB Firearms carries the CMMG ZEROED BANSHEE Mk4 and offers fast nationwide shipping. Local pickup is available at our Saint Clair Shores, Michigan location. Contact us for assistance with this or any hard-to-source firearm.