ZAF UPK FOR GLK 17/34/17L G4

Zaffiri Precision UPK, Upper Parts Kit, For Glock 17/34 Gen 4, 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, Guide Rod 17.34.4.UPK