CMMG Banshee 9mm Complete Upper Receiver - 8"
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CMMG
Overview
The CMMG Banshee 9mm Complete Upper Receiver features an 8" barrel designed specifically for the AR-9 platform, which allows for optimal performance in compact builds. This complete assembly simplifies your build process by providing a ready-to-install upper that is compatible with standard AR-15 lower receivers, making it an excellent choice for those looking to create a streamlined 9mm carbine. This upper is commonly found in pistol caliber carbine builds that prioritize maneuverability and ease of handling.
Specifications
Available Merchants(3)
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Build history on GunPartPicker
Builders have been adding the CMMG Banshee 9mm Complete Upper Receiver - 8" to their builds on GunPartPicker since April 2026. All time, it ranks #620 of the 1,654 upper receivers builders have added.
It was out of stock everywhere we track for all of September 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $718.06 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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