Zaffiri Precision Upper Parts Kit for Glock 17/34 Gen 5 – Complete Slide Components

Keep your Glock 17 or Glock 34 Gen 5 running at peak performance with the Zaffiri Precision 17.5 Upper Parts Kit (ZAF175UPK). This comprehensive kit includes all the critical internal slide components you need for a full rebuild, upgrade, or custom build — eliminating the guesswork and parts-hunting that comes with piecemeal sourcing.

The kit includes a firing pin spring, firing pin spacer sleeve, two spring cups, nitride-treated firing pin safety, firing pin safety spring, nitride-treated extractor depressor plunger, extractor depressor plunger spring, spring loaded bearing, firing pin channel liner, extractor, and slide cover plate. Topping it all off is Zaffiri Precision’s upgraded stainless steel recoil spring assembly (guide rod) at OEM spring weight — a direct improvement over the factory plastic-and-steel hybrid unit.

The nitride-treated components offer enhanced corrosion resistance and durability, while the stainless steel guide rod adds long-term reliability for high-volume shooters and competitive use. Whether you’re building a Glock 17 or Glock 34 Gen 5 slide from scratch, restoring a worn pistol, or upgrading key internals, this kit delivers everything you need in one package at a competitive price.

Compatible with Glock 17 and Glock 34 Gen 5 frames only. Order online today or stop by Deep Roots Rifle Co in Eustis, Florida, where our knowledgeable staff can help you find exactly what your build needs.