Glock 79009 Spare Slide Fits Glock 17 Gen 3 Black Matte Optic Ready Slide

The Glock 79009 spare slide for Glock 17 Gen 3 gives you a complete, ready-to-run upper assembly that's optics-ready from the factory. Whether you're building a second upper for your 17 Gen 3, setting up a dedicated red dot configuration, or keeping a backup on hand, this OEM Glock slide comes with assembled internals and front serrations—just add your barrel, recoil spring assembly, and lower receiver to get back in the fight. It's the same uncompromising engineering that goes into every Glock pistol, because spare parts matter as much as the gun itself.

Built to Glock's exacting standards, this matte black slide features the MOS (Modular Optics System) footprint, which means you can mount a wide range of modern red dots and reflex sights without gunsmithing. The included MOS cover plate protects the mounting surface until you're ready to install glass, and those front serrations give you positive grip control whether you're racking the slide hard or running it under stress. This is genuine Glock factory hardware—no compromises on metallurgy, finishing, or tolerances.

OEM Glock parts are the gold standard for reliability and fit. If you trust your life to a Glock, you should trust only genuine Glock parts in it. This spare slide keeps your pistol in the fight or lets you experiment with different configurations without gutting your primary gun.

Key Features

• Optics-ready MOS slide designed for Glock 17 Gen 3 frames
• Comes with assembled internals for plug-and-play installation
• Matte black finish resists glare and shows minimal wear
• Front serrations for secure hand placement and slide manipulation
• Includes MOS cover plate to protect optics mounting area
• Genuine Glock OEM quality and engineering

Specifications

Frequently Asked Questions

What do I need to complete this slide assembly?

This slide comes with assembled internals and is ready to mount on your Glock 17 Gen 3 frame. You'll need a barrel and recoil spring assembly to finish the build. MOS adapter plates (sold separately) are required if you plan to mount an optic.

Is this slide compatible with all Glock 17 Gen 3 frames?

Yes, this OEM Glock slide is designed to fit standard Glock 17 Gen 3 frames. As a factory Glock part, it meets OEM specifications for proper function and reliability.

Can I mount a red dot sight on this slide?

Yes. The slide features the MOS (Modular Optics System) footprint, which is designed to accept compatible optics plates. You'll need to purchase the appropriate MOS adapter plates separately to install your specific red dot or reflex sight.

What sights come with this slide?

The slide includes standard Glock sights as noted in the package contents.