Product reviews for Zaffiri Precision UPK - Upper Parts Kit - For Glock 17/34 Gen 1-3 - 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.UPK

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