Glock 39 Gen 3 Complete OEM Slide

Upgrade or replace your Glock 39 Gen 3 with a genuine OEM complete slide built for factory-level reliability, durability, and performance. Glock engineers each Gen 3 slide to strict factory standards, delivering precise fitment, consistent cycling, and long-term service life for range, duty, or defensive use.

Product Description | Specs for Glock 39 Gen 3 Complete OEM Slide

Glock manufactures the G39 Gen 3 slide to exact OEM specifications and designs it for seamless compatibility with Gen 3 frames and internals. Glock precision-machines the slide from high-strength steel and applies its factory finish to promote smooth operation, consistent lockup, and dependable performance with factory and quality aftermarket ammunition.

This complete OEM slide works perfectly for replacement builds, slide swaps, or restoring a Glock 39 to factory configuration.

What’s Included For Complete Glock 39 Gen 3 Slide

A complete OEM slide arrives fully assembled and ready to install on a compatible Glock 39 Gen 3 frame. It typically includes:

• G39 Gen 3 OEM slide
• OEM striker (firing pin) assembly
• OEM striker safety and spring
• OEM extractor
• OEM extractor depressor plunger and spring
• OEM slide cover plate
• OEM channel liner (installed)
• OEM sights (polymer or steel, supplier dependent)
• OEM Glock 39 barrel (.45 GAP)
• OEM Gen 3 recoil spring assembly

This complete configuration allows direct installation without sourcing additional components.

Specifications

• Model: G39 Gen 3 Complete Slide
• Manufacturer: Glock (OEM)
• Material: Heat-treated steel
• Finish: Glock factory finish
• Caliber: .45 GAP
• Compatibility: Glock 39 Gen 3 frames and components
• Serrations: Gen 3 factory rear serrations
• Optics Cut: No
• Sights: OEM Glock pattern (varies by package)

How to Install a Glock 39 Gen 3 Slide

Install the Slide

• Confirm the pistol is unloaded and clear
• Remove the existing slide from the frame
• Ensure the barrel and recoil spring assembly are installed
• Align the OEM slide with the frame rails and reattach it

Function Check

• Rack the slide to confirm smooth travel
• Perform a dry-function check to verify proper trigger reset
• Insert an empty magazine and confirm slide lock operation

(Follow Glock armorer guidelines when installing or swapping components.)

How To Disable a Glock 39 Gen 3 Slide

• Remove the slide assembly and store it separately
• Remove and store all magazines separately
• Install a cable or trigger lock through the frame or magwell
• Store ammunition separately
• Secure all components in a locked container or safe

For permanent disabling or legal compliance, consult a licensed gunsmith or FFL.

Compatibility

• Fits: Glock 39 Gen 3 frames
• Barrels: Glock 39 .45 GAP barrels
• Recoil System: Gen 3 recoil spring assembly
• Sights: Glock OEM-pattern sights
• Gen Mix: Glock designs this slide for Gen 3 pistols only; do not mix with other generations without verified compatibility

What’s the Glock 39 Gen 3 Slide Made Of?

Glock manufactures OEM slides from high-strength steel and finishes them to resist corrosion and wear. Precision machining ensures correct breech geometry, extractor engagement, and striker channel alignment for consistent reliability and long service life.

Customization Options

• Sights: OEM polymer, steel, night sights, or fiber optics
• Barrels: Standard Glock 39 .45 GAP barrels
• Internal Parts: OEM or high-quality aftermarket components
• Finish Mods: Cerakote or refinishing services from qualified shops

Note: Modifications may affect reliability or warranty coverage. Always function-test after making changes.

FAQs

Q: Is this a genuine Glock OEM slide?
Yes. Glock manufactures this slide to factory specifications.

Q: Is this a complete slide?
Yes. This package includes the slide, internal components, barrel, recoil spring assembly, and sights.

Q: Will this fit other Glock models or generations?
No. Glock designs this slide specifically for Glock 39 Gen 3 frames.

Q: Does this maintain factory reliability?
Yes. When paired with compatible Gen 3 components, this slide delivers factory-level reliability and performance.

DISCLAIMER

Factoryoemsupply.com provides aftermarket and compatible parts and components for GLOCK pistols. We operate independently and do not represent, endorse, or have any connection with GLOCK, Inc. or GLOCK Ges.m.b.H.

GLOCK, Inc. and GLOCK Ges.m.b.H own the trademark “GLOCK” and other related marks. We mention “GLOCK” only to identify parts and products that fit or work with GLOCK pistols.