CMMG Banshee MK4 5.56 NATO 10.5" Tube handguard AR Pistol

The CMMG Banshee Mk4 5.56 10.5-inch Tube in black (model 55AED0AAB) is a purpose-built AR-15 lower receiver group designed for operators seeking a compact, modular platform with integrated ergonomics. Built on the proven Mk4 platform, this system accepts any standard AR-15 pattern upper receiver, delivering compatibility across diverse mission profiles while maintaining the precision and reliability demanded in tactical and training environments.

The Banshee Mk4 features extensive M-LOK mounting options on the handguard—full-length slots along both sides and bottom, plus additional M-LOK real estate between top picatinny rail sections—enabling flexible accessory configuration without rail bloat. The complete lower receiver group includes CMMG's ZEROED components: ambidextrous safety lever with 60/90-degree selectors, drop-in trigger, ambi magazine catch, extended magazine release button, pistol grip, and 5.56mm linear compensator. This integrated package minimizes parts compatibility questions and reduces setup time. The 10.5-inch tube in 5.56 NATO yields a compact profile optimized for close-quarters work, vehicle operations, and training applications where maneuverability takes priority over extended-range velocity.

The Banshee Mk4 is engineered for operators, law enforcement tactical teams, and experienced shooters who demand a fully ambidextrous platform. The 60/90-degree safety and matched ambi controls eliminate manual manipulations during transitions or repositioning, critical in dynamic scenarios. Magazine compatibility with CMMG conversion magazines (paired with matching upper groups) provides ammunition flexibility for designated marksman roles or training protocols requiring specific cartridge selection. Weighing 9.6 pounds as configured, the system remains manageable for extended patrol or training sessions without fatigue.