Zaffiri Precision Upper Parts Kit for Glock 43/48

This Zaffiri Precision upper parts kit provides all the small components needed to complete a Glock 43 or 48 slide build or replace worn factory parts. The kit includes the firing pin, firing pin spring, firing pin safety, firing pin safety spring, extractor depressor plunger, extractor depressor plunger spring, spring cups, and channel liner—everything required for a functional upper assembly. Whether you're finishing a custom slide build or refreshing an older pistol with fresh internals, this kit covers the critical components that directly affect reliability and extraction.

All parts are manufactured to factory specifications and are designed as drop-in replacements. No fitting or gunsmithing should be required for standard Glock 43 and 48 slides. Installation requires basic disassembly knowledge and standard punches; if you're unfamiliar with Glock striker assembly procedures, consult a qualified gunsmith.

• Part Type: Complete Upper Parts Kit
• Compatible Firearms: Glock 43, Glock 48
• Includes: Firing pin, firing pin spring, firing pin safety, firing pin safety spring, extractor depressor plunger, extractor depressor plunger spring, spring cups, channel liner
• Installation: Drop-in (basic disassembly knowledge required)