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CMMG
Overview
The CMMG 28B3D0CTNG Endeavor 22 ARC Complete Upper Receiver is a fully assembled unit designed for the AR-15 platform, featuring a 20-inch barrel chambered in 6mm ARC. This upper receiver provides builders with a reliable and accurate option for various shooting applications, thanks to its optimized length for balancing velocity and maneuverability. This complete upper is particularly suited for precision-oriented builds, often seen in long-range shooting setups.
Specifications
CMMG 28B3D0CTNG Endeavor 22 ARC 20\" Complete Upper Receiver - Tungsten
Build history on GunPartPicker
Builders on GunPartPicker first added the CMMG 28B3D0CTNG Endeavor 22 ARC 20\" Complete Upper Receiver - Tungsten to a build in March 2026.
Today none of the 2 retailers we track has it in stock right now. Listed prices start at $737.47 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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