CMMG
Overview
The CMMG Banshee MK4 Upper Group .300BLK 12.5" Black is a upper receiver. Compare prices from multiple merchants and find the best deal.
Specifications
Build history on GunPartPicker
Builders have been adding the CMMG Banshee MK4 Upper Group .300BLK 12.5" Black to their builds on GunPartPicker since April 2026. All time, it ranks #391 of the 1,683 upper receivers builders have added.
Today none of the 2 retailers we track has it in stock right now. Listed prices start at $665.23 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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Anderson Manufacturing AM-15 Stripped Lower Receiver - Open - .300 Black Markings
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Radian Weapons AR-15 Raptor-Lt Ambidextrous Charging Handle Black
Dead Air Armament Nomad Ti 30 Cal Suppressor
Bravo Company AR-15/M16 BCM Mil-Spec 6 Position Receiver Extension
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