Dirty Bird AR-15 Cerro Forged Stripped Upper Receiver - Black

Dirty Bird AR-15 Cerro Forged Stripped Upper ReceiverThe Dirty Bird Industries AR-15 Cerro Forged Stripped Upper Receiver is precision-machined to M16/M4 Mil-Spec standards using top-quality Cerro Forgings. They are then finished with a uniform Mil-Spec Type III hardcoat anodizing. These units are quality checked throughout the process to ensure consistent quality from unit to unit.Builders know that not all mil-spec forged upper receivers are created equal. Sub-par forgings suffer from pitting and structural defects, poor anodizing can result in a purplish or chalky finish that doesn't last, and sloppy matching can result in mis-sized lugs, burrs, or other machine marks.You have Dirty Bird's word that these uppers will be free of excessive pitting, machined to spec, and finished with a high-quality (not purple or chalky) hard-coat anodizing.Features 7075-T6 Aluminum Cerro Forgings M4 Feedramps .250 takedown pin holes Port Door (Dust Cover) and Forward Assist not includedMade in the USABacked by Dirty Bird Industries' Limited Lifetime Warranty