Picatinny mil-standard 1913 top rail with Noveske Cross and official RAT stamp
Hardcoat type III anodizing
Featuring anti-rotation interface with handguard
Receiver designed to match the profile of Noveske 4th Generation handguards
N4 barrel nuts are threaded 1 7/16x 18 TP *Disclaimer: These uppers were rejected by the manufacturer due to cosmetic blemishes. This means that you may find chipped cerakote or anodizing, machining marks, or bad stamping. All sales are final.