The CMMG Banshee MkGs is a 9mm pistol-caliber platform with a 5-inch barrel and 33-round capacity. It accepts Glock-pattern magazines, as the MkGs designation indicates. This variant ships in a black finish. 
 

Key Specifications 

• Brand: CMMG 
• Model: Banshee MkGs 
• Caliber: 9mm 
• Action: Semi Auto 
• Capacity: 33+1 
• Barrel Length: 5 inches 
• Color/Finish: Black 
   

Detailed Features 

• 5-inch barrel in a compact configuration 
• Glock-pattern magazine feed (MkGs) 
• Includes a 33-round magazine 
• Black finish

Owners of the Banshee MkGs in black cite Glock magazine compatibility as the primary reason for the purchase. The platform cycles reliably across most standard 9mm loads, and build quality feedback is broadly positive.

The 5-inch barrel divides buyers between those who want the most compact 9mm format possible and those who find the short platform takes adjustment for consistent accuracy. The black finish draws less individual comment than color variants, though durability reports are similarly positive.

CMMG commands a price premium over entry-level PCCs, and buyers who compare on cost alone sometimes find alternatives more appealing. Owners who prioritize Glock-mag interoperability across their collection tend to see the price as worthwhile, keeping overall sentiment favorable.