Continuing the progression of our billet lower receiver, we’ve designed our non forward assist billet upper receiver utilizing high end materials manufactured on state of the art CNC machines that allow us to maintain tight tolerances in an efficient process. Northtech Defense’s billet upper receiver was created to not only be perfectly matched to our billet lower but also complimentary to other lowers that are mil-spec. Logo comes standard as black, silver logo is optional upon request. Machined from 7075 T6 aerospace billet aluminum with M4 Style Feed Ramp cuts Works great in a semi or full auto platform (either Direct Impingement or Piston Driven) Meticulous pre-finish work including being bead blasted prior to being anodized Hard coat black anodize MIL-A-8625 Type 3 class 2 Comes installed with a Mil spec ejection door