Glock G19 Gen 3 Standard MOS Cut Spare Pistol Slides Black. The Slide features MOS technology for easy mounting of red dot optics and front serrations for quicker manipulations. Specifications for Glock G19 Gen 3 Standard MOS Cut Spare Pistol Slides: Manufacturer: Glock Gun Make: Glock Gun Model: Glock 19 Gen 3 Caliber: 9mm Luger Color: Black Package Contents: Glock G19 Gen 3 Standard MOS Cut Spare Pistol Slides GLOCK MOS Cover Plate GLOCK Standard Sights What firearm models does the manufacturer say Glock G19 Gen 3 Standard MOS Cut Spare Pistol Slides is compatible with? The manufacturer suggests that Glock G19 Gen 3 Standard MOS Cut Spare Pistol Slides is compatible with Glock 19 Gen 3Glock 79008: G19 Gen 3 Standard MOS Cut Spare Pistol Slides Black