CMMG Resolute 16.10" Upper .300 Blackout with 1:7 M-LOK Rail - Carbine-Length w/out CH or BCG - Armor Black - 30BC40AAB

Whether you're starting a fresh build or adding variety to your arsenal, the .300 Blackout RESOLUTE Mk4 Upper Group is a ready-to-install option that brings reliability and versatility to the table. Fully assembled and compatible with any standard AR-15 lower, this upper group comes pre-built minus the bolt carrier group and charging handle, giving you the freedom to customize it to your preferences