Radom AK receiver blanks manufactured in Poland Not an FFL item, ruled by the ATF as a rifle part only Available for the AKM/AKMS 7.62x39 Formed to the final shape of the receiver Upper bolt guide rails formed Openings cut for the pistol grip attachment, trigger and magazine well Reinforcing dimples are stamped into the sides AKM magazine well width - 26mm Stamped safety selector markings Magazine well reinforcing dimples formed These are NOT heat treated No holes cut for the trigger and hammer pins, selector or trunnion Receiver rails not included 1mm thickness Unfinished, stamped steel Mfg: Pw Arms SPECS: Unfinished, stamped steel. Dimensions - 10-1/4"x1-5/16". Thickness - 1mm.