CMMG Banshee MK4 .338 ARC 10.5-Inch Handgun

The CMMG Banshee MK4 is a semi-automatic handgun chambered in .338 ARC with a 10.5-inch barrel. It uses a direct-impingement operating system and combines a billet aluminum upper receiver with a forged aluminum lower receiver, a RipBrace, and CMMG ZEROED components.

Designed for practical range use, the Banshee MK4 provides a compact platform with a threaded muzzle, ambidextrous controls, and an integrated handguard system for compatible accessories.

Key Specifications

• The chambering is .338 ARC for the listed configuration.
• The action uses semi-automatic direct impingement operation.
• The barrel measures 10.5 inches.
• The barrel features a 1:8 twist rate.
• The barrel is made from 4140 chrome-moly steel with a nitride finish.
• The muzzle has 5/8x24 threads and a CMMG ZEROED Linear Compensator.
• The upper receiver is constructed from 6061-T6 billet aluminum.
• The lower receiver is constructed from 7075-T6 forged aluminum.
• The handgun includes a CMMG RipBrace and CMMG ZEROED pistol grip.
• The listed weight is 5.6 pounds.

With its .338 ARC chambering, compact barrel, threaded muzzle, and carefully selected CMMG ZEROED components, the Banshee MK4 offers a capable and configurable platform for range sessions and supported shooting applications.

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