ZEV Technologies ZEV Z19 Duty Glock 19 Gen 3 9mm Complete Pistol Slide 509T Optic Cut Black. The black nitride finish of the Duty slide provides a durable coating. The Duty slides feature the same workmanship and quality that ZEV is known for with a functionally driven design and utilitarian coating for the no-nonsense shooter who is looking to complete a new frame build or to enhance the functionality of their Glock. Specifications for ZEV Technologies ZEV Z19 Duty Glock 19 Complete Pistol Slide: Manufacturer: ZEV Technologies Gun Make: Glock Caliber: 9mm Luger Color: Black Fabric/Material: 17-4 Stainless Steel Package Contents: ZEV Technologies ZEV Z19 Duty Glock 19 Complete Pistol Slide What firearm models does the manufacturer say ZEV Technologies ZEV Z19 Duty Glock 19 Complete Pistol Slide is compatible with? The manufacturer says that ZEV Technologies ZEV Z19 Duty Glock 19 Complete Pistol Slide is compatible with Glock 19 Gen 5 Glock 19 Gen 3ZEV Technologies SLD.KIT-Z19-3G-DUTY-509T-B: ZEV Z19 Duty Glock 19 Gen 3 9mm Complete Pistol Slide 509T Optic Cut Black