New Frontier Pistol Cal Upper - Gen 2 Stripped Billet Black.

New frontier pistol cal upper gen 2 stripped billet black.
Other Features: Billet aluminum upper receiver use for most caliber pistols accepts most standard ar15 aftermarket parts.Includes last round hold open feature designed to match lines with new frontier c9 & c45 billet lower receivers.Not machined for gas tube.Intended to be used with blowback systems.