Zps.4 Slide Glock 17 Gen 3 9Mm Optic Ready Sniper Gray

The Zaffiri Precision ZPS.4 slide for Glock 17 Gen 3 is a precision-machined, optic-ready upgrade built for shooters who demand accuracy and reliability. Machined from billet 17-4 stainless steel at Zaffiri's facility in Largo, Florida, this aftermarket slide combines tight manufacturing tolerances with modern red-dot versatility—giving your Gen 3 Glock the edge you need for defensive carry, duty use, or the range. The Sniper Gray Cerakote finish provides a professional look that resists wear and corrosion.

This slide arrives pre-cut and pre-coated for Trijicon RMR/SRO, Holosun 407c/507c, and other RMR-footprint optics. The mounting location sits forward of the factory rear-sight dovetail, so your iron sights remain in place as a backup. The cut is optimized for precision—no guesswork, no secondary machining required. You get a black anodized cover plate and the correct mounting screws; Zaffiri recommends using only their hardware and applying blue Loctite per optic manufacturer torque specs.

Built in the USA and compatible with Glock 17 Gen 3 frames (as well as Gen 1 and Gen 2), the ZPS.4 also accepts Zaffiri Precision ported barrels. This is a no-frills, no-assembly component—just a precision-engineered slide ready to upgrade your platform. If you're building a modern carry gun or modernizing a range tester, this is serious hardware that earns its reputation among people who shoot for real.

Key Features

• Billet 17-4 stainless steel construction with tight tolerances
• Pre-cut and pre-coated for Trijicon RMR/SRO and Holosun 407c/507c optics (RMR footprint)
• Optic mounting forward of factory rear-sight dovetail—iron sights preserved
• Sniper Gray Cerakote finish
• 100% manufactured in the USA (Largo, Florida)
• Includes black anodized cover plate and mounting hardware
• Compatible with Glock 17 Gen 3, Gen 2, and Gen 1 frames
• Ported-slide compatible with Zaffiri Precision ported barrels

Specifications

Frequently Asked Questions

Is this slide compatible with my Glock 17 Gen 3?

Yes. The ZPS.4 is designed and tested for Glock 17 Gen 3 frames. It is also compatible with earlier Gen 1 and Gen 2 models.

What red-dot optics fit the pre-cut optic mounting?

The slide is pre-cut for optics with an RMR footprint, including Trijicon RMR, Trijicon SRO, Holosun 407c, and Holosun 507c. The mounting location is forward of the factory rear-sight dovetail, preserving your iron sights.

What hardware is included?

The slide comes with a black anodized cover plate and the mounting screws required for your optic. Zaffiri Precision specifies that you must use only their screws. You will need to apply blue Loctite per your optic manufacturer's torque specifications.

Does this slide work with ported barrels?

Yes, the ZPS.4 is compatible with Zaffiri Precision ported barrels. The slide itself is pre-cut and pre-coated, so no modifications are possible or needed.