Zaffiri Precision Upper Parts Kit for Glock Gen 1-4 (No Guide Rod)

The Zaffiri Precision Upper Parts Kit provides all the small internal components needed to complete a Glock Gen 1-4 upper assembly or replace worn factory parts. This kit includes the firing pin, firing pin safety, extractor, extractor depressor plunger, spring-loaded bearing, and all necessary springs—everything except the recoil spring assembly and guide rod, which are sold separately. It's designed for builders completing an aftermarket slide or shooters performing maintenance on a well-used pistol.

All components are machined and finished to factory specifications, ensuring reliable function and drop-in fitment. Installation requires basic Glock disassembly/assembly knowledge and standard punch tools. No professional gunsmithing required, but attention to spring orientation and proper assembly sequence is critical for safe operation.

• Part Type: Upper Parts Kit
• Compatible Firearms: Glock Gen 1-4 (9mm, .40 S&W, .357 SIG models)
• Material: Steel components with OEM-spec finishes
• Installation: Drop-In (requires basic Glock armorer knowledge)
• Includes: Firing pin, firing pin safety, extractor, extractor depressor plunger, spring-loaded bearing, and springs
• Does Not Include: Recoil spring assembly or guide rod