- brand new ar15 lowers. quality pieces has provision for screw in pin on the bolt release instead of roll pin. they are machined for a tension screw but they fit snug enough to not need it. theses are made by a local co called MPH. the right mag well says:HE THAT HAS NO SWORD LET HIM SELL HIS GARMENT AND BUY ONE. I have assembled 6 rifles from these lowers and fit and finish are second to none. I have 3 stripped lowers with consecutive serial numbers: 00048-00049-00050. $300.00 shipped to your ffl.