CMMG Banshee MK4 .338 ARC Blue/Black Pistol

Description

Product Overview

The CMMG Banshee MK4 is an AR-style pistol chambered in .338 ARC and configured with a 10.5-inch nitride-finished 4140CM steel barrel. Its direct-impingement operating system uses a pistol-length gas system and a non-adjustable .750-inch gas block, while the CMMG ZEROED Linear Compensator is mounted on 5/8x24 muzzle threads. The pistol combines a billet 6061-T6 aluminum Mk4 upper receiver with a forged 7075-T6 aluminum lower receiver, an EML9 handguard, an ambidextrous ZEROED charging handle, and a CMMG RipBrace. With a 10+1 capacity, 5.6-pound weight, and 26-inch overall length, it provides a compact platform for .338 ARC applications. The upper receiver is ready for optic mounting, and one 10-round CMMG magazine is included.

Key Features

• .338 ARC chambering delivers a larger-bore option in a compact AR-style pistol platform.
• The 10.5-inch nitride-finished 4140CM steel barrel features a 1:8 twist and 5/8x24 muzzle threads.
• Direct-impingement operation with a pistol-length gas system supports familiar AR-pattern controls and maintenance.
• The Mk4 billet upper and forged lower receiver provide a durable aluminum receiver set.
• The EML9 handguard offers a streamlined mounting platform for compatible accessories.
• CMMG ZEROED components include the ambidextrous charging handle, pistol grip, and linear compensator.

The CMMG Banshee MK4 combines compact dimensions, .338 ARC capability, and familiar AR-pattern ergonomics in a ready-to-configure pistol platform.