Zaffiri Precision UPK, Complete Upper Parts Kit, Fits GLOCK 19 Gen 4, Black UPK-G19G4Upper Parts Kit (UPK) for Glock 19 - Gen 4. These are great for completing your custom slide. All parts are from US manufacturer. All Parts are made to the highest tolerance to the original specification. These parts are Gen 4 specific and not compatible with any other Gens.Upper Parts KitFor GLOCK 19 Gen 4SpecificationsBrandZaffiri Precision
