Description
The CMMG BANSHEE MK4 is an AR pistol chambered in .300 AAC Blackout. Its semi-automatic action, 8 inch barrel, and pistol tube configuration establish a compact platform for range use. The package includes a 30-round magazine and uses a Picatinny optic footprint.
Key Specifications
- The pistol is chambered in .300 AAC Blackout for compatibility with that cartridge.
- The barrel measures 8 inches, matching the compact configuration listed for this model.
- The action operates as semi-automatic for a familiar manual of operation.
- The frame is made from aluminum to keep the listed receiver material straightforward.
- The handguard is a CMMG EML7 M-LOK handguard with M-LOK slots on the sides, bottom, and between the top Picatinny rail sections.
- The optic footprint is Picatinny, providing the specified mounting interface.
- The pistol uses 5/8-24 inch muzzle threads at the barrel.
- The configuration includes a Zeroed linear muzzle device and a Zeroed trigger.
- The safety is ambidextrous with 60/90-degree operation.
- The package includes one 30-round magazine.
The BANSHEE MK4 combines an aluminum frame with a polymer grip, a pistol tube, and a 4140 CM barrel. The listed 66-ounce weight gives this configuration a clear, measurable handling profile without adding assumptions about its overall dimensions. We stock this setup for shooters who want an AR pistol with factory-integrated controls, M-LOK accessory mounting, and a threaded barrel. The CMMG BANSHEE MK4 remains the focus.




