NC15U-223-11.5BLK : NC15 COMPLETE UPPER - 11.5" .223 BLK
Barrel: 1-7 11.5? 4150 Mil-B-11595E steel w/ M4 feed ramps and carbine length gas port - bead-blasted, QPQ finish and cryo-treated
Muzzle Device: NC flash hider, black finish
Gas Block: NC non-adjustable low-profile .750 dia.
Handguard: NC-3 freefloat M-LOK compatible handguard
Upper Receiver: NC15 billet
Bolt Carrier: Black nitride 8620 steel slabside AR carrier with properly staked gas key
Bolt: 9310 MPI
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|Receivers||Upper Receiver Complete/Assembly|