All fully assembled lower receivers have undergone assembly, inspection and testing by our dedicated lowers department. The specifications and tolerances are consistent with those utilized in our complete rifles. We provide multiple options for our complete lowers. Please utilize the dropdown menu to select the desired lower receiver. Selector markings for bullet Pictograms 7075-T6 forged receiver Multi-caliber MIL-A-8625F, type III, class 2, hardcoat anodized finish CNC machined billet magazine release actuator Magpul MOE grip, black Mil-spec buffer tube - 6-position configuration castle nut - included latch plate - staked Design 17-7 stainless steel buffer spring ST-T2 data buffer Magpul CTR stock in black