135 Glock Model 23 Gen 4 in 40 S&W with 4.01" Barrel. This semi-auto pistol features a four magazines, recessed thumb rest, finger groove grip, accessories rail, interchangeable frame back straps, a reversible enlarged magazine catch, dual recoil spring assembly, a new trigger system, standard Glock sights and a standard black finish. The gun is in As New condition and it comes in its original box. Estimated Value: Low: $450 High: $550