Upper Receivers & Rail Systems

Daniel Defense - DD4™ RIII™S 11.5" Upper Receiver Group, Black or FDE

Daniel Defense - Omega Rail® 7.0, Picatinny

Daniel Defense - Omega Rail® 9.0, Picatinny

Daniel Defense - MK18 Upper Receiver Group - 10.3", 5.56mm NATO, Black or FDE

Daniel Defense - M4A1 Upper Receiver Group - 14.5", 5.56mm NATO, FDE

Daniel Defense - DDM4®300 S Upper Receiver Group - 10.3", 300 BLK

Daniel Defense - DDM4®V7® Upper Receiver Group - 16" 5.56 NATO

Daniel Defense - DDM4®V7® LW Upper Receiver Group - 16" 5.56 NATO

Daniel Defense - M4A1 Rail Interface System II, RIS II (Black)

Daniel Defense - M4A1 FSP Upper Receiver Group - 14.5" 5.56 NATO

Troy - Upper Receiver Kit, 10.5" Barrel, M-LOK Handguard, 9", A3, Black

Daniel Defense - DDM4®V7® S Upper Receiver Group - 11.5" 5.56 NATO