Zaffiri Precision UPK, Upper Parts Kit, For Glock 19 Gen 5, Includes Firing Pin and Spring, Firing Pin Spacer Sleeve, Firing Pin Channel Liner, Spring Cups, Safety Plunger and Spring, Extractor, Extractor Depressor Plunger Assembly, Slide Recoil Cover Plate, Stainless Steel Guide Rod UPK.19.5