Zps.3 Slide Glock 17 Gen 3 9Mm Optic Ready Black

The Zaffiri Precision ZPS.3 slide for Glock 17 Gen 3 is a precision-machined, optic-ready replacement slide built for shooters who want to upgrade their pistol's accuracy and versatility. Machined from billet 17-4 stainless steel and manufactured in-house at Zaffiri's facility in Largo, Florida, this slide delivers the tight tolerances and quality control you won't find in generic aftermarket parts. Whether you're running a duty gun, building a competition pistol, or setting up a carry gun with a modern red dot, the ZPS.3 gives you a solid foundation with professional-grade craftsmanship.

This slide arrives pre-cut and pre-coated, ready to mount optics in the RMR footprint—compatible with Trijicon RMR, Trijicon SRO, Holosun 407C, Holosun 507C, and other popular RMR-pattern red dots. The optic cut is positioned forward of the factory rear sight dovetail, so you retain that backup sight option. The slide ships with the correct mounting screws and a black anodized cover plate; you'll just need to choose your optic and add it to the gun. Zaffiri recommends blue Loctite for secure retention and advises staying within the optic manufacturer's torque specs.

Available in four Cerakote finishes—Armor Black, Magpul FDE, Sniper Grey, and Magpul OD Green—you can match your aesthetic or environment. One important note: this slide is not ported, so it won't work with Zaffiri ported barrels (those require the ZPS.P or ZPS.4). This is a straightforward, no-nonsense upgrade for Glock 17 Gen 3 shooters who value American manufacturing and precision engineering.

Key Features

• Billet 17-4 stainless steel construction, machined in the USA for tight tolerances and durability
• Optic-ready with RMR footprint cut—compatible with Trijicon RMR, SRO, Holosun 407C/507C, and other RMR-pattern red dots
• Pre-cut and pre-coated; arrives ready to install on your Glock 17 Gen 3 frame
• Rear sight dovetail preserved behind the optic cut for backup iron sights
• Includes mounting screws and black anodized cover plate
• Four Cerakote color options: Armor Black, Magpul FDE, Sniper Grey, Magpul OD Green
• Not ported; use standard (non-ported) barrels for compatibility

Specifications

Frequently Asked Questions

Will this ZPS.3 slide fit my Glock 17 Gen 3?

Yes. The ZPS.3 is designed for Glock 17 Gen 3 frames and is also compatible with earlier Gen 1 and Gen 2 models. It's a direct fit replacement slide—no frame modifications needed.

What red dot sights work with the optic cut on this slide?

The ZPS.3 uses an RMR footprint cut, making it compatible with Trijicon RMR, Trijicon SRO, Holosun 407C, Holosun 507C, and other optics that follow the RMR mounting pattern. The slide comes with the correct mounting screws and a black anodized cover plate. Blue Loctite is recommended for secure retention.

Can I use Zaffiri ported barrels with this slide?

No. This slide is not ported and is not compatible with Zaffiri's ZP ported barrels. The ZPS.P and ZPS.4 slides are the ported-compatible models. Use standard, non-ported barrels with the ZPS.3.

Does the ZPS.3 come with backup iron sights?

No. The slide arrives with mounting screws, a black anodized cover plate, and no other sights. The factory rear sight dovetail remains on the slide behind the optic cut, so you can add backup iron sights if desired, but they are not included.