The Zaf Upper Parts Kit (UPK) is specifically designed for Glock 19 Generation 3 pistols providing all necessary components for completing your custom slide build.Zaf Upper Parts Kit for Glock 19 Gen 3Complete UPK with all required upper componentsUS manufacturer with high-tolerance machiningMade to original Glock specificationsGen 3 specific - not compatible with other generationsIdeal for custom slide projects and builds this kit ensures reliable performance and proper fitment for your Glock 19 Gen 3 platform.