{"product_id":"zaf-upper-parts-kit-for-glk-19-gen-4","title":"Zaffiri Precision Upper Parts Kit for Glock 19 Gen 4","description":"\u003cp\u003eThis upper parts kit from Zaffiri Precision includes all the small components needed to complete a Glock 19 Gen 4 slide build or replace worn parts in an existing slide. The kit contains the firing pin, firing pin safety, extractor, extractor plunger, spring-loaded bearing, and firing pin spring—everything required for a functional slide assembly.\u003c\/p\u003e\u003cp\u003eManufactured to OEM specifications, these parts are made from heat-treated steel with a black finish on applicable components. This is a drop-in kit that requires no fitting or modification. Builders should have basic Glock armorer knowledge or reference a detailed assembly guide. Replace these parts during routine maintenance intervals or when building a custom slide from the frame up.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Complete Upper Parts Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e Glock 19 Gen 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heat-Treated Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black (where applicable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In (basic armorer knowledge recommended)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Firing Pin, Firing Pin Safety, Extractor, Extractor Plunger, Spring-Loaded Bearing, Firing Pin Spring\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zaffiri Precision","offers":[{"title":"Default Title","offer_id":47941740724479,"sku":"ZAF194UPK","price":91.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2886277.jpg?v=1766569658","url":"https:\/\/doublestackstore.com\/products\/zaf-upper-parts-kit-for-glk-19-gen-4","provider":"Double Stack Store","version":"1.0","type":"link"}