Have this brand new completely built shadow system mr920. This gun has been upgraded with a 507c x2 on. Has a bronze threaded barrel from shadow system attached (with less than 50 rounds shot through). Comes with a black non threaded barrel that has less than 100 rounds shot through. Changed out the mag release after shooting since I heard it’s a common issue with the mr920 got a brand new one from shadow system. Comes with an extended slide release lever installed and an extra Glock OEM extended slide lever and stock shadow slide lever release. Also has an upgraded 11 pound spring from a different company and a stock 13 pound spring from shadow system. Comes with the shadow system bag and 2 speed reloaded. Mags included are 4 OEM Glock mags that are 17 rounders. 2 10 round PMAG and 2 15 round PMAG. Last mag included is a Shield arms Glock 19 ORM mag +5 with a total of 20 rounds. Finaly comes with a open cut holster that sits perfectly for concealed carry. Whole build is spotless and comes ready with everything you will ever need.