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DPMS Panther Arms Kitty Kat 5.56 NATO 7.5" Upper Receiver Black Nitride
FightLite Industries MCR060 Dual-Feed AR-15/M16 Upper 5.56x45mm NATO 16.25" Black
FightLite MCR-556-DFRS Upper Receiver 5.56 NATO 12.5" Black
Fightlite Industries MCR060M Dual-Feed AR-15 Upper, 5.56x45mm NATO, 16.25" Barrel, Black Finish.
Fightlite Industries MCR-556-DFR 5.56 NATO 16.25" Upper Receiver Assembly
FightLite Industries MCR556DFRM AR-15 Upper 5.56x45mm NATO 16.25" Black 7075-T6 Aluminum M-LOK Handguard
Cobalt Kinetics CK-Pro Urg 5.56x45mm NATO 11.50" Black Cerakote Upper Receiver Group - CKPROURG556115BBLK
Cobalt Kinetics CK-Pro Urg 5.56x45mm NATO 11.50" Flat Dark Earth Cerakote Upper Receiver Group - CKPROURG556115BFDE
Cobalt Kinetics CK-Pro Urg 5.56x45mm NATO 13.70" Black Cerakote Upper Receiver Group - CKPROURG556137BLK
Patriot Ordnance Factory P415 Complete Upper 5.56x45mm NATO 16.50" Black Nitride Barrel Aluminum Black Anodized Rec
Patriot Ordnance Factory P415 Complete Upper 5.56x45mm NATO 10.50" Black Nitride Barrel Aluminum Black Anodized Rec