CMMG Banshee MK3 8.6 Blackout 12.5" 20-Round AR Pistol

The CMMG Banshee MK3 8.6 Blackout 12.5" AR pistol represents a purpose-built platform for shooters seeking a compact, high-velocity rifle cartridge in a pistol form factor. This firearm bridges the gap between handgun portability and rifle performance, making it ideal for home defense, tactical training, and users operating in confined spaces where a traditional long gun presents handling challenges. The 8.6 Blackout cartridge delivers superior ballistic efficiency in short barrels, maintaining velocity and energy that rifle-length systems struggle to match.

Built on proven AR platform architecture, the Banshee MK3 features a 12.5-inch barrel optimized for the 8.6 Blackout round, allowing this cartridge to reach its full potential in a shorter configuration than standard rifle builds. The modular design leverages familiar controls and ergonomics, ensuring rapid target acquisition and intuitive operation for operators with AR-platform experience. At 11 pounds and measuring 39.6 inches overall, the platform balances firepower with maneuverability, while the 20-round magazine capacity provides substantial on-board ammunition reserves for extended training or defense scenarios.

Law enforcement tactical teams, military support personnel, and civilian home defenders benefit most from this compact powerhouse, particularly those seeking a suppressor-ready platform with subsonic ammunition capability. The threaded barrel accommodates standard suppressors, and when paired with subsonic 8.6 Blackout loads, the Banshee MK3 delivers hearing-safe operation without sacrificing terminal ballistics. Shooters upgrading from 5.56 platforms will appreciate the ergonomic familiarity combined with the kinetic advantage of a heavier, slower-moving projectile—a proven advantage in tactical environments where over-penetration control and barrier performance matter.