CMMG Banshee Upper Group 5.7x28mm 8″ Black

Description

Designed to provide superior ballistics and reduced felt recoil compared to many pistol-caliber personal defense platforms, the CMMG Banshee upper group is built for compact PDW-style AR configurations in 5.7x28mm. The 8″ Banshee upper group is delivered complete with a bolt carrier group and ZEROED accessories and is intended for use on CMMG Mk57 lowers or a standard AR15/Mk4 lower when paired with CMMG 5.7 AR conversion magazines. The assembly features a billet receiver and an M-LOK handguard for accessory compatibility and modularity.

Key Specifications

• The caliber is 5.7x28mm.
• The barrel length is 8 inches.
• The operating system is Radial Delayed Blowback.
• The barrel twist rate is 1:9.
• The barrel contour is MT.
• The barrel material is 4140CM SBN.
• The muzzle thread is 1/2 x 28.
• The muzzle device is a CMMG ZEROED Linear Compensator.
• The upper receiver is Billet 6061 T6 Aluminum.
• The handguard is a CMMG EML7 M-LOK.

This complete upper group gives builders a compact, well-specified path to a 5.7x28mm PDW-style AR platform. With billet construction, an M-LOK handguard, and ZEROED accessories included, it offers a factory-aligned set of components for a streamlined build and reliable operation in close-quarters or compact-config applications.

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