Zaffiri Precision G19 Gen 4 ZPS.3 Slide w/ RMR Cut
The Zaffiri Precision G19 Gen 4 ZPS.3 Slide is part of their Ready To Ship (RTS) slide lineup, offering outstanding fit, finish, and function right out of the box. Designed with precision tolerances, these slides are ideal for builders looking to upgrade their Glock® 19 Gen 4 platform with a performance-enhancing, optics-ready slide that doesn’t compromise on quality or style.
CNC machined from a single billet of 17-4 stainless steel, this slide delivers exceptional strength and reliability. The ZPS.3 design features clean lines and functional serrations that improve grip without being overly aggressive. Each slide is pre-cut for RMR-pattern optics and finished in durable Cerakote, providing both protection and visual appeal.
Compatibility:
- Fits Glock® 19 – Gen 4 frame
- Compatible with Shadow Systems MR918 and Nomad 9 frames
- Not compatible with Gen 3, Gen 5, or Polymer 80 frames
- Not compatible with ZP ported barrels
Slide Features:
- Machined from 17-4 stainless steel for superior durability
- Tight tolerances increase accuracy and performance
- Pre-Cerakoted finish offers corrosion resistance and a sleek look
- Front and rear serrations for positive slide manipulation
- Channel liner is not installed and must be installed before use
Optics Cut Details:
- Supports Trijicon RMR / SRO, Holosun 407c / 507c, and other RMR footprint optics
- Optic cut is forward of the rear sight dovetail, retaining traditional sight configuration
- Black anodized cover plate included for non-optic setups
Installation Notes:
- Slide includes optic-specific mounting screws
- Blue Loctite is strongly recommended for screw retention
- Always adhere to optic manufacturer’s torque specs for proper installation
Proudly made in the USA, the Zaffiri Precision ZPS.3 Slide for Glock® 19 Gen 4 is an excellent upgrade for builders who value function, form, and readiness. Whether you’re assembling a defensive pistol, competition build, or personal range project, this slide is engineered for precision and built to perform.
Product Information
Manufacturer | Zaffiri Precision |
---|---|
Optics Cut | Trijicon – RMR |
Platform | Glock |
Material | 17-4 Stainless Steel |
Finish | Cerakote |
Color | Black, FDE, Sniper Grey, Flat Dark Earth, OD Green |
Compatibility | G19, Gen 4 |
Made in USA | Yes |
We fully comply with all federal, state, and local laws regarding the sale of restricted products. We do not market or sell to prohibited jurisdictions, and any attempts to induce illegal activity, including by law enforcement or government agencies, will be rejected and may be reported. All orders are subject to legal verification, and those in violation will be canceled. By using this site, you confirm compliance with all applicable laws.

Arm or Ally is a stocking dealer for all Aero Precision, Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, TriggerTech, HIPERFIRE and was named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!
See our growing inventory of AR Parts, Parts for Glock and Reloading Components.