Glock 23 Gen 3 OEM Slide (Complete) 

Product Overview

The Glock 23 Gen 3 OEM Complete Slide delivers proven Glock reliability in a compact .40 S&W platform. Glock builds this slide with a factory barrel, recoil spring assembly, and all internal parts already installed. Mount it on any Glock 23 Gen 3–compatible frame, add your sights or optic if needed, and hit the range. This slide gives you dependable performance for everyday carry, training, or duty use.

Product Description | Specs

Key Details

Condition: Complete OEM slide with barrel, RSA, and factory internals
Fitment: Glock 23 Gen 3 (verify frame compatibility)
Material: Hardened, high-strength OEM steel
Finish: Factory nDLC / nitride corrosion-resistant finish
Serrations: Standard rear serrations for secure manipulation
Optic Option: Factory iron-sight dovetail cut (optic cuts require MOS or aftermarket milling)
Sights: Factory polymer sights included (user-replaceable)
Weight: OEM slide assembly weight (varies slightly per finish)
Tolerance: Built to Glock factory specs for reliable lockup and cycling

Technical Specs (Quick Reference)

Model: Glock 23 Gen 3 OEM Complete Slide Assembly
Material: Forged OEM steel slide & barrel steel
Finish: Factory nDLC / nitride
Includes:

• Slide
• Barrel (factory .40 S&W)
• Recoil spring/guide assembly (RSA)
• Extractor
• Firing pin assembly
• Firing pin safety
• Depressor plunger assembly
• Rear slide plate
• Channel liner
• Factory polymer sights

Fit: Glock 23 Gen 3 compatible frames
Factory Assembled & Tested: Yes

What’s Included for Complete OEM Slide

In the Box

• 1 × Glock 23 Gen 3 OEM Complete Slide Assembly (slide + barrel + RSA + internals + sights)

Not Included

• Frame (receiver)

• Magazine(s)

• Optic plates or red-dot sight

• Aftermarket sights (unless purchased as an upgrade)

How to Install the Glock 23 Gen 3 OEM Complete Slide

Safety First

• Work on a stable, well-lit surface.
• Wear eye protection.
• Confirm the firearm is unloaded.
• Follow Glock’s official instructions or contact a certified armorer.

Drop-In Installation 

1. Verify the slide matches your Glock 23 Gen 3 frame.
2. Remove the magazine and confirm the chamber is empty.
3. Align the slide with the frame rails and rack it into position.
4. Perform a quick function check

If you are installing optics or new sights, follow manufacturer torque specs. Test-fire the firearm at a safe range before daily use.

How to Disassemble the Glock 23 Gen 3 OEM Slide 

Routine Disassembly

1. Remove magazine; lock slide open; check chamber.
2. Follow Glock takedown steps to separate slide from frame.
3. Remove recoil spring assembly and barrel.
4. Inspect extractor, firing pin channel, and safety components.
5. Clean, lubricate, and reassemble.

For deeper service, contact a certified Glock armorer.

What the Glock 23 Gen 3 OEM Slide Is Made Of

Glock forges the slide from hardened, high-strength steel and protects it with a durable nDLC/nitride finish. This coating improves wear resistance, reduces friction, and guards against corrosion. Each component meets Glock OEM standards to deliver long life and consistent performance round after round.

Customizations & Upgrades

Popular Options

• Sight Upgrades: Night sights or fiber-optic replacements
• Optics: Aftermarket milling for red-dot footprints
• Custom Coatings: Cerakote or DLC finishes
• Slide Serrations or Porting: Performed by certified gunsmiths

Note: Any permanent slide modification may void warranties. Always use a trained professional.

FAQs

Q: Is this slide ready to use out of the box?

Yes. It ships fully assembled with barrel and internals, but you need a Glock 23 Gen 3 frame and magazine.

Q: Does this slide come optic-ready?

It includes standard Glock dovetail cuts. Optics require MOS or aftermarket milling.

Q: Does it fit any Glock 23 frame?

It fits Glock 23 Gen 3 frames. Confirm compatibility before purchase.

Q: Are sights included?

Yes. It comes with factory-installed polymer sights.

Q: Do I need a gunsmith to install it?

Most users can install it themselves. Use a professional for optic mounting or sight upgrades.

Q: How durable is the nDLC finish?

Very durable. The nDLC finish boosts corrosion resistance and reduces friction to extend slide life.

DISCLAIMER

Oemglockslides.com provides aftermarket and compatible slides 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.