ZEV Technologies Upper Parts Kit. Fits: 9mm Glocks Gen 1-4 (G17 / G19 / G26 / G34).It will NOT work with the Gen 5 slides. This 9mm parts kit works with a ZEV slide to create a completely functional upper assembly including all internals and ZEV backplate. Kit Includes: Factory components; Channel liner, Striker sleeve, Spring cups, Extractor, Rod & bearing assembly ZEV components; Stainless steel Firing Pin safety & Firing Pin, FPS Spring, (2lb &3lb) Striker spring and ZEV Backplate. The item "ZEV Technologies Upper Parts Kit for 9mm Gen 3/4 Glock 17 19 26 34" is in sale since Friday, July 27, 2018. This item is in the category "Sporting Goods\Hunting\Gun Parts\Pistol". The seller is "asssti" and is located in San Ardo. This item can be shipped to United States.