DPMS Quad-Rail Nitride 5.56x45mm NATO 10.5 inch Upper Receiver One Size

DPMS Quad-Rail Nitride 5.56x45mm NATO 10.5 inch Upper Receiver One Size. Exclusive Panther designed handguard with markings is only avilable on these new line of upper receivers. Barrel: 4150V Chrome Moly Vanadium Steel. Chambered in 5.56 NATO with a 1/7 twist M4 barrel extension and a Mid-length gas system. This A2 style profile barrel is nitride treated for accuracy and durability. Barrel is finished off with a low profile gas block a custom 9in quad rail handguard and an A2 flash hider. Upper