Results for Colt 5.56x45mm NATO Upper Receivers

Colt 10.3" CQB 5.56 Upper Receiver - MK18 Clone

Colt M16A1 Upper Receiver Assembly - Auction

Colt M16A1 653 Carbine Parts Kit - Auction

Colt M16A1 Upper Receiver Lot - Auction

Colt Clone M16A1 Upper Receiver Stripped

Colt IAR 5.56 Upper Receiver Assembly 11.5" Barrel

Colt LE6940 5.56 Monolithic Upper Receiver Assembly - Police Trades

Ar-15 Le6960-Ccu Upper Receiver 5.56 M-Lok - Le6960-Ccu Upper Receiver 5.56 M-Lok Black

M4 Upper Receiver 5.56 Socom Barrel - M4 Socom Upper Group 14.5in Stripped