CMMG Banshee MK4 .338 ARC 10.5″ RipBrace Black

Description

The CMMG Banshee MK4 in .338 ARC brings a compact AR-style platform in a pistol form factor, built on CMMG’s Mk4 architecture. Designed with a 10.5″ barrel and an EML9 handguard, it offers a short overall length suitable for PDW-style configurations. The pistol features Mk4 billet upper and forged lower receivers, CMMG ZEROED controls, and a RipBrace for a streamlined, pistol-centered setup. Full-length M-LOK slots on the handguard provide modular mounting options for accessories.

Key Specifications

• The caliber is .338 ARC.
• The barrel measures 10.5 inches.
• The action is Semi-Auto.
• The operating system is Direct Impingement.
• The barrel material and finish are 4140CM with a Nitride finish.
• The barrel twist is 1:8.
• The muzzle is threaded 5/8 x 24 and includes a CMMG ZEROED Linear Compensator.
• The upper receiver is Mk4 billet 6061 T6 aluminum and the lower receiver is Mk4 forged 7075 T6 aluminum.
• The handguard is an EML9 with full-length M-LOK provisions.
• The stock/brace is a CMMG RipBrace and the overall finish is Cerakote.

Compact, component-focused, and built on the Mk4 platform, the Banshee MK4 .338 ARC is aimed at shooters who want an AR-style pistol with heavy-caliber capability in a short package. Its combination of quality receiver materials, a short threaded barrel with a ZEROED compensator, and modular M-LOK handguard make it a practical choice for a range of modern shooting applications where a compact AR-format pistol is preferred.

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