Specification: ? Weight: 20g(0.71oz) ? Color: Black ? Length: 46mm (1.8 inch) ? Width: 25.4mm(1 inch) ? Mid Thickness: 3mm (0.1 inch) ? Material: aluminumFeature: ? Only install onto GLOCK pistol. ? High quality aluminum alloy in durable black matte finish. ? Designed for real fire caliber. ? Pistol mount plate for replacing rear sight with micro red dot fits small framed GLOCK 17 19 22 23 26 27 34.Package: ? 1x Glock Mount