NBS Enhanced AR-15 Stripped Billet Upper Receiver

The NBS AR15 billet upper receivers are the perfect compliment to many billet lowers. Machined from a solid brick of 7075-T6 aluminum, hand deburred, tumbled, and hard coat anodized, our uppers will provide you a lifetime of service. We ensure that every upper is well within spec and will function perfectly for your build. 7075-T6 aluminum Accepts all mil-spec components Left side relief allows for most aftermarket battery assist devices Fits all milspec dimension lower receivers Looks great with billet AR15 lower Hard coat anodized