Zaffiri Precision Upper Parts Kit for Glock 19 Gen 4

The Zaffiri Precision Upper Parts Kit provides all the small components needed to complete a Glock 19 Gen 4 slide build or replace worn internal parts. This kit includes the firing pin assembly, firing pin safety, extractor with spring-loaded bearing, extractor depressor plunger, firing pin cups, and channel liner—everything required for a functional upper assembly except the slide and barrel.

Machined from quality materials with factory-style specifications, these parts are engineered as direct replacements for OEM components. Installation is straightforward for builders familiar with Glock disassembly and requires only basic hand tools and punches. Each component meets dimensional tolerances for reliable cycling and extraction.

• Part Type: Upper Parts Kit
• Compatible Firearms: Glock 19 Gen 4
• Material: Steel components with OEM-spec finishes
• Installation: Drop-in for experienced builders; professional installation recommended if unfamiliar with Glock internals
• Includes: Firing pin assembly, firing pin safety, extractor assembly, extractor depressor plunger, firing pin cups, channel liner