CMMG 22AC40FAB BANSHEE MK4 22LR 9 TUBE ARBLK

The CMMG Banshee MK4 in .22 LR is a purpose-built rimfire AR pistol designed to deliver affordable, low-recoil shooting without compromising on controls or modularity. This 9-inch tube AR pistol combines the familiar ergonomics of the AR platform with the cost-effective ballistics of .22 Long Rifle, making it an ideal choice for extended range sessions, training new shooters, or reducing ammunition costs while maintaining trigger discipline and weapon-handling fundamentals.

The Banshee MK4 features CMMG's EML (Effin' M-LOK) handguards with full-length M-LOK slots on both sides and the bottom, plus M-LOK integration between top Picatinny rail sections for flexible accessory mounting. The pistol incorporates ZEROED ambidextrous components throughout: ambi safety lever (60/90-degree), ambi magazine catch, extended magazine release button, ambi charging handle, and an AR15-pattern ergonomic grip. These controls ensure shooters of any hand preference can operate the platform intuitively. At 6.25 pounds unloaded with a compact 27-inch overall length, the platform balances shootability with manageability in restricted spaces or during transportation.

The Banshee MK4 .22 LR serves shooters seeking a dedicated, low-cost training platform that doesn't sacrifice controls or tactical relevance. Operators use rimfire variants for marksmanship fundamentals, ammunition-efficient practice, or introducing new shooters to AR platform operation. The generous M-LOK real estate accommodates optics, lights, and laser systems for transitional dry-fire drills or force-on-force training. The .22 LR cartridge produces minimal recoil and blast, allowing faster shot correction and reducing shooter fatigue during extended sessions—critical for consistency-focused training cycles.

Within the AR pistol market, rimfire variants occupy a distinct niche: they preserve full AR ergonomics and controls while dramatically reducing per-round cost and recoil impulse. This makes the Banshee MK4 particularly valuable for duty-related dry-fire programs, cadet or youth introduction to the platform, or high-volume range work where ammunition budgets matter. Serious shooters often maintain a dedicated .22 LR AR upper or complete gun for this exact purpose.