{"product_id":"zaf-upper-parts-kit-for-glk-19-g4-1","title":"ZAFPRE Upper Parts Kit for Glock 19 Gen 4","description":"\u003cp\u003eThis upper parts kit provides all the essential components needed to complete a Glock 19 Gen 4 slide build or replace worn factory parts. Includes extractor, firing pin, firing pin spring, extractor spring, spring-loaded bearing, firing pin safety, and firing pin safety spring—everything required for proper slide function and reliable extraction.\u003c\/p\u003e\u003cp\u003eManufactured to OEM specifications with heat-treated steel and corrosion-resistant finishes where applicable. Drop-in installation for builders familiar with Glock disassembly and reassembly. Verify headspace and function testing after installation as with any parts replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e 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 Steel Components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In (Armorer Knowledge Recommended)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Extractor, Firing Pin, Firing Pin Spring, Extractor Spring, Spring-Loaded Bearing, Firing Pin Safety, Firing Pin Safety Spring\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZAFPRE","offers":[{"title":"Default Title","offer_id":48405691334911,"sku":"ZAFUPK-G19G4","price":80.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/5829608.jpg?v=1776440316","url":"https:\/\/doublestackstore.com\/products\/zaf-upper-parts-kit-for-glk-19-g4-1","provider":"Double Stack Store","version":"1.0","type":"link"}