5.56x45mm NATO Upper Receivers

RADICAL FIREARMS Upper Assembly 5.56 10.5" M4 Contour9" MHR

RADICAL FIREARMS Upper Assembly 5.56 7.5" M4 Contour 7" RPR

RADICAL FIREARMS Upper Assembly 5.56 7.5" M4 Contour 7" MHR

Barrett REC7 Gen II 5.56 Nato Burnt Bronze 16" Upper Receiver 16336

Barrett REC7 Gen II 5.56 Nato Multi Role Brown Upper Receiver 16in bbl 16335

Barrett REC7 Gen II 5.56 Nato Flat Dark Earth 11.5" Upper Receiver 16034

Barrett REC7 Gen II 5.56 Nato OD Green 11.5" Upper Receiver 16033

Barrett REC7 Gen II 5.56 Nato Tungsten Grey 11.5" Upper Receiver 16032

Barrett REC7 Gen II 5.56 Nato Black Upper Receiver 11.5in bbl 16031

Barrett REC7 Gen II 5.56 Nato FDE 16" Upper Receiver 15239

Barrett REC7 Gen II 5.56 Nato OD Green 16" Upper Receiver 15238

Barrett REC7 Gen II 5.56 Nato Grey 16" Upper Receiver 15237

Barrett REC7 Gen II 5.56 Nato Black 16" Upper Receiver 15236

Barrett 12677 REC7 5.56 NATO Upper Receiver 16" Barrel

UPPER GROUP RESOLUTE 100 MK4 556 X 45MM

ASCENT 5.56X45 NATO COMPLETE UPPER RECEIVER

FAXON ASCENT 10.5" 5.56 AR15 PISTOL

AIM Sports Inc Semi-Complete 5.56 AR Upper Parts Kit No Bcg Or Charging Handle Black Small Black Small

Diamondback Firearms AR-15 DB15 Obsidian Barreled Upper Receiver 5.56x45mm NATO 11.5" Olive Drab Green

Diamondback Firearms AR-15 DB15 Obsidian Barreled Upper Receiver 5.56x45mm NATO 11.5" Flat Dark Earth

Diamondback Firearms AR-15 DB15 Obsidian Barreled Upper Receiver 5.56x45mm NATO 11.5" Black

Diamondback Firearms AR-15 DB15 Obsidian Barreled Upper Receiver 5.56x45mm NATO 16" Olive Drab Green

Diamondback Firearms AR-15 DB15 Obsidian Barreled Upper Receiver 5.56x45mm NATO 16" Flat Dark Earth

Diamondback Firearms AR-15 DB15 Obsidian Barreled Upper Receiver 5.56x45mm NATO 16" Black