CMMG Banshee Mk4 5.56x45mm 12.50″ RipBrace 30+1

The CMMG BANSHEE Mk4 is a compact AR pistol built on CMMG’s Mk4 platform and chambered for .223 REM/5.56 NATO. It features a medium-taper, 12.50″ threaded barrel and an 11″ CMMG EML M-LOK handguard for modular accessory mounting. The build includes CMMG ZEROED controls and a Cerakote black finish on aluminum receivers. A 30-round Magpul PMAG is included to complete the package.

Key Specifications

• The caliber is .223 REM/5.56 NATO.
• The barrel measures 12.50″ and uses a medium taper profile.
• The barrel is threaded (muzzle thread specification listed below).
• The firearm operates as a Semi-Auto.
• The magazine capacity is 30 + 1.
• The handguard is a CMMG EML11 M-LOK with full-length M-LOK sections.
• The muzzle thread is 1/2 X 28.
• The upper receiver is Billet 6061 T6 Aluminum.
• The lower receiver is Mk4 Forged 7075 T6 Aluminum.
• The pistol uses a CMMG RipBrace pistol brace.

Purpose-built for compact handling and modular capability, the BANSHEE Mk4 balances short-profile ergonomics with carbine-caliber performance. Its EML M-LOK handguard and threaded barrel provide flexibility for accessories and muzzle devices, while the ZEROED control set delivers ambidextrous function out of the box. For shooters seeking a compact AR platform with factory-configured controls and a durable receiver set, the Mk4 offers a practical, well-appointed option.

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