CMMG BANSHEE MK4 5.56 NATO AR Pistol, 12.5 Inch

Description

The Banshee MK4 is CMMG’s compact AR-platform pistol built around the idea of a short, maneuverable package that still runs standard 5.56 NATO ammunition and accepts standard AR magazines. It suits shooters who want an AR-pattern firearm in a significantly reduced footprint — whether for home defense, vehicle carry, or range use where a full-length rifle is impractical.

The operating system uses CMMG’s radial delayed blowback action rather than a conventional direct-impingement or piston gas system. In a short-barreled platform like this one, gas pressure at the muzzle end of the cycle is higher than it would be with a longer barrel, and a standard blowback design would transmit that directly to the bolt carrier. The radial delay slows the unlocking sequence just long enough for pressure to drop to a safer level before the case extracts, which keeps felt recoil more consistent and reduces stress on brass. It is a meaningful engineering choice at this barrel length, not just a marketing distinction.

The handguard uses M-LOK attachment points, which keep the profile slim while giving the shooter a flat surface to grip and a standardized interface for lights, foregrips, or other accessories. The optics-ready top rail means there are no fixed sights competing for real estate — the expectation is that the shooter will mount a red dot or other compact optic suited to the distances this pistol is designed for. Ambidextrous controls, including the safety, mean left- and right-handed shooters can run the gun without reaching across the receiver. The Midnight Bronze Cerakote finish is applied over the aluminum receiver and provides corrosion resistance alongside its distinctive appearance.

Shipping and availability: This item cannot be shipped directly to Rhode Island and Washington. It cannot be sold into Illinois. Check your state and local requirements before ordering.