CMMG MK4 .300BLK Banshee Upper Group Receiver 12.5in Coyote Tan
3 options
- Coyote · Tan, this page
- Midnight · Bronzeout of stock
- Tungstenout of stock
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CMMG
Overview
The CMMG Mk4 .300BLK Banshee Upper Group Receiver features a complete assembly with a 12.5-inch barrel, specifically designed for the .300 Blackout caliber, making it ideal for a variety of shooting applications. The coyote tan finish adds a distinct look while the upper receiver integrates seamlessly with AR-15 platforms. This upper is particularly popular in builds focused on .300 Blackout, catering to those looking for compact, high-performance options in their firearms.
Specifications
CMMG MK4 .300BLK Banshee Upper Group Receiver 12.5in Coyote Tan
3 options
- Coyote · Tan, this page
- Midnight · Bronzeout of stock
- Tungstenout of stock
Build history on GunPartPicker
Builders on GunPartPicker first added the CMMG MK4 .300BLK Banshee Upper Group Receiver 12.5in Coyote Tan to a build in February 2026.
Today the one retailer we track is out of stock. Listed prices start at $799.99 at Optics Planet for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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