CMMG Banshee Mk4 Upper Group 5.56×45 12.5″ Black

The CMMG Banshee Mk4 Upper Group in 5.56x45mm is designed for those looking to build a compact AR pistol or SBR with impressive maneuverability and carbine-like ballistic performance. This upper group features a 12.5-inch barrel with a 1:7 twist rate, crafted from 4140CM steel with a salt bath nitride finish, ensuring durability and accuracy. The direct impingement operating system and CMMG ZEROED Linear Compensator optimize the shooting experience.

• Includes CMMG ZEROED AR15 Polymer Dust Cover
• CMMG ZEROED Ambidextrous Charging Handle
• Carbine-length gas system with 0.750" non-adjustable gas block
• Billet 6061 T6 aluminum upper receiver
• CMMG EML11 M-LOK handguard for accessory mounting

This upper is finished with a standard Cerakote and weighs just 3.8 lbs, with an overall length of 20.8 inches. Available in a variety of Cerakote finishes, it offers both functionality and aesthetic appeal. As a family-owned business in Saint Clair Shores, Michigan, ICB Firearms provides knowledgeable service and fast nationwide shipping.