Zaffiri Precision Upk Glock 17 34 Gen 5 Upper Parts Kit Stainless Recoil

The Zaffiri Precision UPK for Glock 17/34 Gen 5 is a meticulously crafted Upper Parts Kit designed to complete your custom slide with precision and reliability. This Gen 5 specific kit brings together essential components such as the firing pin spring and pin spacer sleeve, spring cups, firing pin safety nitride and spring, extractor depressor plunger nitride and spring, spring loaded bearing, firing pin channel liner, extractor, slide cover plate, and the upgraded ZP stainless steel recoil spring assembly, all sourced from a US manufacturer to ensure consistent quality. Engineered to the original specifications with the highest tolerance, the ZP Stainless Steel Recoil Spring Assembly delivers OEM spring weight performance for smooth, reliable cycling in Glock 17 and 34 builds. Ideal for enthusiasts looking to complete and elevate a custom slide, this UPK provides dependable function and compatibility across Gen 5 components while maintaining a clean, professional fit. Whether upgrading an existing handgun or assembling a precision-focused project, the Zaffiri Precision UPK offers robust construction, exacting tolerances, and trusted performance to support accurate, repeatable operation and enhanced reliability in demanding shooting scenarios.