The CMMG Banshee Mk4 Upper Suppressed 300BLK 6.5 M-N-B is a purpose-built upper receiver group engineered around the .300 Blackout cartridge. Built on a Mk4 billet 6061-T6 aluminum upper with an 11-inch M-LOK handguard, it neatly shrouds the included ZEROED 30 suppressor for a clean, integrated profile. A 6.5-inch 4140CM nitride barrel, adjustable .750 gas block, and direct impingement operating system work together to deliver smooth cycling and reliable performance with suppressed .300 BLK loads.
This upper is compatible with standard Mk4/AR-15 lower receivers, making it an easy way to convert an existing lower into a dedicated suppressed .300 Blackout platform for range use, training, or hunting where short, quiet setups are preferred. Thoughtful touches like the CMMG ZEROED ambidextrous charging handle and lightweight 4.3-pound overall weight reflect CMMG’s focus on practical innovation and refined craftsmanship.
Key Features:
- Manufacturer: CMMG
- Model: Banshee Mk4 Upper Suppressed 300BLK 6.5 M-N-B
- Caliber: .300 BLK
- Barrel Length: 6.5 inches
- Operating System: Direct Impingement
- Muzzle Device: ZEROED 30 suppressor
- Muzzle Thread: 5/8 x 24
- Gas Block: .750 Adjustable
- Upper Receiver: Mk4 Billet 6061 T6 Aluminum
- Hand Guard: 11-inch M-LOK
- Charging Handle: CMMG ZEROED Ambi
- Weight: 4.3 lbs
- Length: 19.5 inches
| __Capacity | NA |
| __Caliber | NA |
| __Barrel Length | NA |
| __Optic Footprint | NA |
| __Action | NA |
| __Model | ZEROED BANSHEE Mk4 Suppressed Upper Group |
