Looking for a top quality Upper Receiver at wholesale prices? The NBS AR-15 Stripped Upper machined by one of the foremost manufacturers of mil-spec AR-15 components in America. Normally these stripped uppers are only available to builders when purchased from a name brand at a substantial markup, but we're making these available at wholesale prices. What makes this upper different from other "Mil-Spec" upper receivers?0 Machined from top tier forgings. Shot blasted prior to anodizing which results in a finish which is more consistent, durable and uniform. No chalky or purplish anodizing. Slightly chamfered lug holes for quick and easy takedown/pivot pin engagement. Quality assurance program that exceeds industry standards.Features: 7075-T6 Forged Aluminum Black Anodized finish Flat-Top Mil-Spec dimensions for guaranteed fit with any mil-spec lower receiver M4 Feed RampsBacked by our 30 Day Satisfaction Guarantee. You can install it, run it, beat it up and if you're not happy for any reason, send it back within 30 days for a refund.