Zps.1 Slide Glock 19 Gen 3 9Mm Optic Ready Black

The Zaffiri Precision ZPS.1 slide for Glock 19 Gen 3 is a factory-ready, optic-cut upgrade that transforms your duty or carry gun into a modern red-dot platform without gunsmithing. Built from 17-4 stainless steel and finished in black anodize, this slide arrives machined, coated, and ready to mount—no additional modifications needed. The optic cut is pre-machined for RMR/SRO and Holosun 407C/507C footprint optics, positioned forward of the factory rear dovetail so iron sight backup remains available.

Zaffiri Precision engineered this slide with tight tolerances to tighten groups and improve reliability. The design preserves the dovetail behind the optic cut, giving you the option to install backup sights if your mission profile demands them. Since the ZPS.1 arrives as a finished assembly, there's no waiting for custom work—unbox it, mount your optic with the included screws, and run it. The slide is incompatible with ported barrels, so confirm your barrel type before ordering if you're planning a compensated build.

Installation is straightforward: drop the ZPS.1 onto your Gen 3 frame, use the provided screws and blue Loctite for optic retention, and respect the optic manufacturer's torque specs. The slide also works with Polymer 80 PF940c frames for custom builds. Zaffiri includes a black anodized cover plate to protect the cut when you're running iron sights only.

Key Features

• Machined from 17-4 stainless steel with black anodize finish
• Pre-cut for RMR, SRO, and Holosun 407C/507C optics (RMR footprint)
• Factory rear dovetail preserved for backup iron sights
• Includes black anodized optics cover plate and mounting screws
• Factory-ready—no additional machining or custom work required
• Compatible with Glock 19 Gen 3 frames and Polymer 80 PF940c
• Tight tolerances for improved accuracy and performance

Specifications

Frequently Asked Questions

Will this Glock 19 Gen 3 optic-ready slide work with my Polymer 80 frame?

Yes, the ZPS.1 is compatible with both factory Glock 19 Gen 3 frames and Polymer 80 PF940c frames, making it a flexible choice for both OEM and custom builds.

What red dot sights does this optic cut support?

The slide is cut for RMR, SRO, and Holosun 407C/507C optics—any sight with the standard RMR footprint. The mounting position sits forward of the original rear sight dovetail, preserving your backup iron sight options.

Does the slide come with everything I need to install an optic?

The ZPS.1 includes a black anodized cover plate and the proper mounting screws for your optic. You'll need to provide your own red dot sight. Zaffiri recommends blue Loctite on the screws and advises staying within the optic manufacturer's torque specifications for proper retention.

Can I use this slide with a ported or compensated barrel?

No, the ZPS.1 is not compatible with ported barrels. Confirm your barrel type before ordering if you're running a compensated setup.