CMMG BANSHEE MK3 UPPER GROUP 308WIN 12.5 BLK

The CMMG BANSHEE Mk3 upper group is chambered in .308 WIN and is built on CMMG's Mk3 platform derived from the DPMS Gen 1 high-pattern LR308 design. It ships complete with a bolt carrier group and manufacturer-specified ZEROED accessories, including a polymer dust cover, ambidextrous charging handle, and a CMMG ZEROED linear compensator. The assembly is intended to provide a compact .308-compatible upper for AR10-style builds where component compatibility and compactness are priorities.

Key Specifications

• The caliber is .308 WIN.
• The platform is Mk3.
• The operating system is Direct Impingement.
• The barrel length is listed as 12.5.
• The barrel twist is 1:10.
• The barrel contour is MT.
• The barrel material is 4140CM SBN.
• The muzzle device is the CMMG ZEROED Linear Compensator.
• The muzzle thread is 5/8 x 24.
• The upper receiver is Billet 7075 T6 Aluminum.

This upper group combines a compact footprint with a billet receiver and a full complement of ZEROED accessories to support a range of uses where a compact .308-capable upper is desired. The included components and Mk3 compatibility provide a straightforward integration path for builders focused on reliability and parts commonality.