Forged from 7075 T6 Aluminum, this mil-spec stripped left handed upper receiver is ready for your next build. Features include M4 feed ramps, T-Marks on the picatinny rail and black anodize. These blemished stripped upper receivers didn't pass our high-quality standards due to cosmetic imperfections, but they are perfect for everyday use.This product is blemished. Blemishes may include: • Minor tool marks • Flaws in finish These products are fully functional. If you don't mind a slight imperfection, this is the perfect product for you. We do not accept returns on blemished products.