CMMG BANSHEE MK4 | .300 BLK | 8in | 30rd | 30A240FAB

The CMMG BANSHEE MK4 is a compact AR-pattern pistol chambered in .300 AAC Blackout with an 8-inch barrel and a 30‑round magazine. It is configured with CMMG’s EML7 M-LOK handguard, ambidextrous controls, a zeroed linear muzzle device, and an included PMAG. The platform is built for short-barrel and suppressed/subsonic use while retaining standard AR ergonomics and a Picatinny optic footprint.

For an optic that pairs well on this pistol and stays under $1,000, consider the Vortex Sparc AR red dot for fast target acquisition and durable performance on short-barrel AR pistols. Typical applications include suppressed/subsonic shooting and short- to mid-range practical shooting.

Product Specifications

• The caliber is .300 AAC Blackout.
• The action is Semi-Auto.
• The barrel measures 8 inches.
• The barrel material is 4140 CM.
• The magazine capacity is 30 rounds.
• The number of magazines included is 1 (one PMAG).
• The handguard is a CMMG EML7 M-LOK unit providing full-length M-LOK slots.
• The optic footprint is Picatinny.
• The sights are listed as None.
• The muzzle threads are 5/8-24.
• The muzzle device is a zeroed linear muzzle device.
• The frame material is Aluminum.
• The ambidextrous safety is listed as Yes (CMMG Zeroed 60/90 Degree).
• The color/finish is listed as Black.
• The UPC is 810144724119.

This BANSHEE MK4 combines a short, maneuverable footprint with robust AR controls and accessory provisions. The 8-inch 4140 CM barrel, M-LOK handguard, and Picatinny rail make it straightforward to set up for suppressed or unsuppressed roles while keeping accessory options open. Its included 30‑round magazine and ambidextrous controls make it a practical choice for users who need compact, reliable performance in short-barrel configurations.

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