ONE HORSE AR15 A3 Stripped Upper Receiver White

GUNTEC AR15 SLABSIDE STRIPPED BILLET UPPER RECEIVER BLACK

AERO PRECISION M5 .308 Stripped Upper Receiver - Anodized Black

AERO PRECISION M5 Stripped Upper Receiver FDE

AERO PRECISION AR15 5.56 NATO / 223 Rem 20" Complete Upper Receiver w/ Carry Handle | Black

BATTLE ARMS Workhorse Upper Recv 5.56 16" AR-15 Sniper Gray

Battle Arms Development WH556-URS-ODG Workhorse Upper Receiver Aluminum OD Green Anodized Receiver for AR15/M4

BATTLE ARMS Authority ELite Upper Recv 5.56 10.5" AR-15 Gray