The CMMG Banshee Mk4 5.7x28 is a modern pistol caliber carbine built on the proven AR15 platform, delivering rifle-like ballistics with minimal recoil in a compact, modular package. If you've spent time behind an AR and want to explore the 5.7x28mm cartridge without sacrificing ergonomics or compatibility, the Banshee bridges that gap nicely. It uses a standard AR15 lower receiver with CMMG's purpose-built 5.7x28mm magazines, so you're not locked into proprietary parts or learning a completely new platform.

The 8-inch barrel and radial delayed blowback operating system are engineered to manage the 5.7x28mm round efficiently, keeping recoil light and follow-up shots fast. The billet upper and forged lower receivers are built to handle the pressures and demand of regular shooting, while the Cerakote finish protects against the elements during range sessions and field use. You get CMMG's ZEROED components throughout—ambi charging handle, drop-in trigger, safety selector, and linear compensator—all tuned for a smooth, reliable experience out of the box.

At just over 5 pounds and 23.7 inches long, the Banshee is easy to handle in tight spaces and won't wear you out during extended range time. The M-LOK handguard gives you genuine modularity if you want to add optics, lights, or other accessories. Whether you're exploring a lighter-recoil rifle alternative for training, home defense, or just want a fun, shootable platform that doesn't require a complete AR learning curve, the Banshee offers serious appeal without the hype.

The CMMG Banshee Mk4 5.7x28 is a modern pistol caliber carbine built on the proven AR15 platform, delivering rifle-like ballistics with minimal recoil in a compact, modular package. If you've spent time behind an AR and want to explore the 5.7x28mm cartridge without sacrificing ergonomics or compatibility, the Banshee bridges that gap nicely. It uses a standard AR15 lower receiver with CMMG's purpose-built 5.7x28mm magazines, so you're not locked into proprietary parts or learning a completely new platform.

The 8-inch barrel and radial delayed blowback operating system are engineered to manage the 5.7x28mm round efficiently, keeping recoil light and follow-up shots fast. The billet upper and forged lower receivers are built to handle the pressures and demand of regular shooting, while the Cerakote finish protects against the elements during range sessions and field use. You get CMMG's ZEROED components throughout—ambi charging handle, drop-in trigger, safety selector, and linear compensator—all tuned for a smooth, reliable experience out of the box.

At just over 5 pounds and 23.7 inches long, the Banshee is easy to handle in tight spaces and won't wear you out during extended range time. The M-LOK handguard gives you genuine modularity if you want to add optics, lights, or other accessories. Whether you're exploring a lighter-recoil rifle alternative for training, home defense, or just want a fun, shootable platform that doesn't require a complete AR learning curve, the Banshee offers serious appeal without the hype.