Zaffiri Precision G19 Gen 3 ZPS.4 Slide w/ RMR Cut
The Zaffiri Precision G19 Gen 3 ZPS.4 Slide is a premium aftermarket upgrade built to enhance accuracy, reliability, and aesthetics for your Glock® 19 build. Precision-machined from a single billet of 17-4 stainless steel, this slide is part of Zaffiri’s Ready To Ship (RTS) series—pre-cut, pre-coated, and ready for fast shipping without the wait.
The ZPS.4 design features aggressive front and rear serrations for improved grip during manipulations and a ported top window that not only reduces slide weight but also complements Zaffiri’s ported barrel designs. Whether you’re building a range gun or custom carry piece, the ZPS.4 offers the perfect blend of form and function.
Compatibility:
- Fits Glock® 19 – Gen 3 frame
- Also compatible with Polymer 80 PF940C frames
- Designed for use with both standard and ported ZP barrels
- Not compatible with Gen 4, Gen 5, or Glock MOS models
Slide Features:
- Machined from billet 17-4 stainless steel for superior strength and performance
- Pre-Cerakoted for enhanced corrosion resistance and finish durability
- Front and rear slide serrations for easy press checks and racking
- Ported slide cut window for visual appeal and compatibility with ZP ported barrels
- Channel liner is not installed and must be added before use
Optics Cut Details:
- Compatible with Trijicon RMR / SRO and Holosun 407c / 507c
- Mounting position is forward of the rear sight location (dovetail remains behind the optic cut)
- Includes black anodized optics cover plate for non-optic use
Installation Notes:
- Includes proper mounting screws specific to supported optics
- Use Blue Loctite for optimal screw retention
- Do not exceed the torque specifications provided by your optic manufacturer
Whether you’re upgrading your existing Glock® 19 or starting a fresh custom build, the Zaffiri Precision ZPS.4 Slide delivers enhanced accuracy, premium machining, and compatibility with today’s most popular red dot optics and ported barrel configurations—all proudly made in the USA.
Product Information
| Manufacturer | Zaffiri Precision |
|---|---|
| Optics Cut | Trijicon – RMR |
| Platform | Glock |
| Material | 17-4 Stainless Steel |
| Finish | Cerakote |
| Color | Black, FDE, Sniper Grey, Black Multicam, Flat Dark Earth, OD Green |
| Compatibility | G19, Gen 3 |
| Made in USA | Yes |












