DIA 556P5.5H50B8-R 223/556 BRL 5.5 HV 1/8 BLK
Diamondback
$66.00
Diamondback 556P55H50B8R OEM Replacement 5.56x45mm NATO 5.50" Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel