Zaffiri Precision Upper Parts Kit – Glock 17/34/17L Gen 1-3

The Zaffiri Precision Upper Parts Kit provides all the essential components needed to complete a Glock 17, 34, or 17L Gen 1-3 upper assembly or restore a worn factory slide. This kit includes the firing pin, firing pin spring, firing pin safety, extractor with loaded chamber indicator, extractor depressor plunger, spring cups, and channel liner—everything required for reliable slide function. It's an essential kit for builders working with aftermarket slides or shooters replacing worn internals on high-round-count pistols.

All components are precision-machined to factory specifications and delivered ready to install. Installation is straightforward for anyone with basic Glock armorer knowledge and standard punches, though first-time builders may want to reference assembly diagrams. The kit includes all OEM-spec parts with proper heat treatment and spring tensions for consistent ignition and extraction.

• Part Type: Upper Parts Kit
• Compatible Firearms: Glock 17, 34, 17L Gen 1-3
• Material: Steel components with factory-spec heat treatment
• Installation: Drop-in for experienced builders, reference materials recommended for first-time assembly
• Includes: Firing pin, firing pin spring, firing pin safety, extractor with LCI, extractor depressor plunger, spring cups, channel liner