CMMG Banshee MK4 300BLK Pistol | 8″ Barrel | 30AF20A-MB

The CMMG Banshee MK4 in .300 AAC Blackout is a compact AR-pattern pistol built around an 8-inch threaded barrel and CMMG’s Mk4 platform hardware. It ships with a CMMG Zeroed linear muzzle device, EML7 M-LOK handguard and a single 30-round Magpul PMAG. For a sighting solution that complements the short profile and close-to-midrange use of this pistol, consider a compact red dot such as the Holosun 507C, which provides a clear sight picture and durable construction at well under $1,000.

This Banshee suits range use and suppressed or short-barrel shooting where .300 BLK performs efficiently in both subsonic and supersonic loadings. Its configuration favors accessory flexibility with a full Picatinny footprint and multiple M-LOK slots for lights, grips, or backup sights.

Product Specifications

• The caliber is .300 AAC Blackout.
• The barrel length is 8 inches with threading at 5/8×24.
• The action is Semi-Auto.
• The magazine capacity is 30 rounds and a Magpul 30rd PMAG is included.
• The handguard is a CMMG EML7 M-LOK with full-length M-LOK slots on both sides and the bottom.
• The muzzle device is a CMMG ZEROED Linear Comp.
• The optic footprint is PICATINNY.
• The receiver materials are Billet 6061 T6 (upper) and Mk4 Forged 7075 T6 (lower).
• The finish is Midnight Bronze Cerakote.
• The barrel material is 4140 CM.
• The pistol includes an ambidextrous safety described as CMMG Zeroed 60/90 Degree.
• The stock/brace is a CMMG RipBrace.
• The trigger is a ZEROED drop-in single stage trigger.
• The unit includes 1 magazine.
• The UPC is 810148623562.

The Banshee MK4 brings compact handling and a robust parts package from CMMG’s Mk4 family into a dedicated .300 BLK pistol platform. Its 8-inch threaded barrel, full M-LOK handguard and included 30-round PMAG make it well suited for shooters who want a flexible short-barrel AR pistol for range work, suppressed shooting, or specialized sporting applications. The Midnight Bronze finish and CMMG ZEROED components give a cohesive, ready-to-use package that accepts a wide range of aftermarket optics and accessories.

Related Videos: