The CMMG Banshee Mk4 pistol in .22 LR (brand part no. 22AC40FAB) is a dedicated rimfire AR pistol built to make range day more affordable and more approachable for new shooters. CMMG builds the Banshee on its Zeroed parts package, including a drop-in trigger, a 60/90-degree ambidextrous safety, an ambidextrous magazine catch with an extended release button, and an ambidextrous charging handle. The 9-inch barrel wears an AR15-style flash hider, and the EML handguard runs full-length M-LOK slots on both sides and the bottom, plus additional M-LOK sections between the top Picatinny rail. The pistol ships with a 25-round CMMG magazine for a 25+1 capacity. Among AR pistols, the Banshee Mk4 in .22 LR favors shooters who want low-cost rimfire practice on a familiar AR-pattern platform.

Key Specifications

• The chambering is .22 LR.
• Magazine capacity is 25+1 rounds.
• The barrel measures 9 inches.
• The safety is CMMG’s Zeroed 60/90-degree ambidextrous design.
• The trigger is a Zeroed drop-in trigger.
• The magazine catch is ambidextrous with an extended release button.
• The charging handle is ambidextrous.
• The muzzle wears an AR15-style flash hider.
• The handguard runs full-length M-LOK slots on both sides and the bottom.
• The pistol ships with a 25-round CMMG magazine.

Frequently Asked Questions

Is this pistol chambered in a centerfire caliber? No, it’s a dedicated .22 LR rimfire build on the AR-pattern Banshee Mk4 platform.

Does the magazine catch work for left-handed shooters? Yes, it’s ambidextrous with an extended release button.

What comes included with the pistol? A 25-round CMMG magazine for the full 25+1 capacity.

Buy the CMMG Banshee Mk4 Pistol, .22 LR

Affordable rimfire practice on a full-featured AR-pattern platform is exactly what this Banshee Mk4 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL as soon as it’s ready.