*SOLD* CMMG Banshee Mk4 4.6x30mm Bronze 8" *INCREDIBLE SEMI-AUTOMATIC PISTOL

Bryant Ridge's Analysis:

The CMMG Banshee MK4 chambered in 4.6x30mm is not just a firearm—it's a bold statement in modern personal defense. Compact, aggressive, and engineered for superior performance, this cutting-edge PDW packs serious firepower into a sleek, ultra-lightweight 4.3-pound platform. Built on the battle-proven Mk4 AR architecture, the Banshee features a precision 8-inch 4140CM barrel with a 1:5.9 twist rate and a rugged Salt Bath Nitride finish, delivering both long-lasting durability and pinpoint accuracy. Its MT-profile barrel is topped with a CMMG Zeroed linear compensator, expertly designed to drive blast forward, making it perfect for high-pressure, close-quarters scenarios. A micro-length gas system and Foursix-specific .750 gas block ensure buttery-smooth cycling, finely tuned to maximize the ballistic potential of the high-velocity 4.6x30mm cartridge. Every inch of this firearm screams innovation and purpose. The billet 6061-T6 upper and forged 7075-T6 lower receiver provide unmatched strength without sacrificing agility. At just 23.7 inches long, the Banshee MK4 excels in tight spaces and rapid maneuvers. 
 
Its sleek EML7 M-LOK handguard offers expansive real estate for lights, lasers, and grips—plus M-LOK slots between Picatinny rail segments for next-level customization. Outfitted with the full CMMG Zeroed suite, including an ambi charging handle, drop-in single-stage trigger, ergonomic pistol grip, and 60/90-degree safety selector, this firearm is ready the moment you are. Feeding from a rugged 40-round CMMG magazine, the Banshee MK4 is the first AR-style platform ever chambered in 4.6x30mm—and the first to bring this elite cartridge to the U.S. civilian market. 
 
Originally developed for the iconic H&K MP7, the 4.6x30mm round is a speed demon: flat-shooting, low-recoil, and armor-defeating. Even better, it’s more affordable and accessible than its 5.7x28mm rival, giving you more rounds downrange for less. Finished in a striking Midnight Bronze Cerakote, the Banshee MK4 doesn’t just perform—it turns heads. Whether you're running drills at the range, defending your home, or outfitting for duty use, the Banshee MK4 FourSix is the future of the PDW, in your hands today.

Specifications:

Manufacturer: CMMG 
Model: Banshee Mk4
Serial: BOD30287
Caliber: 4.6x30mm 
Finish: Midnight Bronze Cerakote
Barrel Length: 8" Barrel with Compensator 
Optics/Sights: None (Picatinny Rail)
Stock/Grips: Black Polymer Pistol Grip with CMMG EML7 M-LOK Handguard
Action: Semi-Automatic 
Markings: Standard 

Jun 17th 2025 Bryant Ridge

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