The CMMG Zeroed Banshee 300BLK 6.5 SR MK4 FS GR is a compact AR15-pattern pistol built around CMMG’s Mk4 platform and tuned specifically for the .300 Blackout cartridge. A 6.5-inch barrel is paired with the included Zeroed 30 suppressor, which nests inside the oversized M-LOK handguard for a sleek profile and excellent balance. Premium Zeroed controls such as the ambidextrous charging handle, drop-in single-stage trigger, and 60/90 ambi safety selector make this pistol intuitive and comfortable to run from either shoulder.

This model uses a direct impingement operating system with an adjustable .750 gas block to keep the 300 BLK running smoothly with a wide range of loads. The Fastback 6-position receiver extension and CMMG RipBrace provide a stable, adjustable shooting platform, while the Magpul 30-round PMAG keeps you shooting longer between reloads. Whether you are setting up a quiet range gun, a compact home-defense option, or a versatile training tool, the Zeroed Banshee showcases CMMG’s attention to detail and commitment to modern AR innovation.

Key Features:

• Manufacturer: CMMG
• Model: Zeroed Banshee 300BLK 6.5 SR MK4 FS GR
• Caliber: .300 BLK
• Action: Semi-Automatic
• Barrel Length: 6.5 Inches
• Operating System: Direct Impingement
• Muzzle Device: Zeroed 30 Suppressor
• Gas Block: .750 Adjustable
• Hand Guard: 10 Inch M-LOK
• Magazine: Magpul 30rd PMAG
• Weight: 6.1 Lbs
• Length: 27–29.5 Inches