Upper Receiver, M16, Model 604 “Slick Slide”, USGI Contractor, Complete

Description – Forged M16 Upper Receiver from USGI Contractor, Model 604 “Slick Side” – Type 3 Hard coat Mil Spec Anodized – 7075 T6 Aluminum – A2 Barrel Extension *Does Not Include M4 Feed Ramps – Call for Feed Ramp Options.* – Mil-Spec A1 Rear Sight Assembly, Installed – Mil-Spec Ejection Port Cover, Installed