In many cases, Factory Rebuilt Glocks start as display models and/or have cosmetic blemishes that do not meet Glock Inc.'s quality standards. When that happens, the firearm is returned to Glock, where they replace worn parts, refinish the metal, and classify the firearm as a "rebuilt." Chambered in 9 mm Luger, the G43X Rail features a compact Slimline frame with a slim mounting rail as well as a 10-round magazine capacity, making it ideal for concealed carry.Features :Includes Two 10-Round MagazinesNo Finger GroovesGLOCK Marksman BarrelModular Backstrap SystemReversible Magazine Catch