Zps.4 Slide Glock 19 Gen 3 9Mm Optic Ready Sniper Gray

The Zaffiri Precision ZPS.4 slide for Glock 19 Gen 3 is a precision-engineered upgrade built by serious shooters who demand better accuracy and reliability from their carry or duty pistol. Machined from single-billet 17-4 stainless steel and finished in Sniper Gray Cerakote, this optic-ready slide comes pre-cut for RMR-footprint red dots—the modern standard for fast, accurate pistol shooting. Whether you're building a competition gun, upgrading a carry piece, or assembling a backup duty weapon, the ZPS.4 delivers the tight tolerances and American craftsmanship that separate quality builds from budget parts.

This slide is 100% manufactured in Largo, Florida, machined to exacting standards that eliminate the slop and wear you'll find in original Glock slides. The optic mounting is intelligently designed: the cut sits forward of the factory rear-sight dovetail, so you can run iron backup sights without sacrifice. The slide arrives pre-cut and pre-coated, so there's no waiting or sending it off to a gunsmith—bolt it onto your Gen 3 frame and get to work. It's compatible with Glock 19 Gen 3, as well as earlier Gen 1 and Gen 2 models, plus popular aftermarket frames like the P80 PFC9, PSA Dagger, and SCT 19 if you're going the 80-percent route.

The optic cut accepts Trijicon RMR, SRO, Holosun 407C, 507C, and other popular RMR-footprint optics. Zaffiri includes the correct mounting screws and a black anodized cover plate specific to your optic cut—a detail most competitors skip. The slide is also ported-compatible with Zaffiri Precision ported barrels (ZPS.P and ZPS.4 models only), opening the door to recoil management on demand. Note that this is a slide only; frame, barrel, and internals are not included, and no parts come assembled.

Key Features

• Billet 17-4 stainless steel construction machined to tight tolerances for enhanced accuracy
• Optic-ready with RMR-footprint cut for Trijicon RMR, SRO, Holosun 407C/507C, and compatible red dots
• Pre-cut and pre-coated in durable Sniper Gray Cerakote—no gunsmithing required
• 100% American-made at Zaffiri Precision's Florida facility
• Factory rear-sight dovetail remains functional behind the optic cut for iron backup
• Ported-compatible with Zaffiri ZP Ported barrels
• Mounting screws and black anodized cover plate included
• Compatible with Glock 19 Gen 3, Gen 2, Gen 1, and popular aftermarket frames (P80, PSA Dagger, SCT)

Specifications

Frequently Asked Questions

Will this slide fit my Glock 19 Gen 3 frame?

Yes. The ZPS.4 is designed for and compatible with Glock 19 Gen 3 frames, as well as Gen 2 and Gen 1 models. It's also compatible with aftermarket frames including the P80 PFC9, PSA Dagger, and SCT 19.

What red dot sights does the optic cut accept?

The slide is pre-cut for RMR-footprint optics, including Trijicon RMR, Trijicon SRO, Holosun 407C, Holosun 507C, and other pistol optics that use the RMR mounting pattern.

Does this slide come pre-assembled, and what hardware is included?

No—the slide comes unassembled. It includes the mounting screws and a black anodized cover plate specific to your optic cut. You'll need to source a frame, barrel, trigger group, springs, and pins separately.

Can I still use iron sights with this optic-cut slide?

Yes. The factory rear-sight dovetail remains intact and functional behind the optic cut, so you can mount backup iron sights. The optic cut is positioned forward of the dovetail for this reason.

Is this slide compatible with ported barrels?

The slide is ported-compatible and works with Zaffiri Precision ZP Ported barrels designed for the ZPS.4 slide. Other ported barrel options may not be compatible—confirm with the barrel manufacturer.