Glock 20 Gen 5 MOS Complete OEM Slide

Upgrade or replace your Glock 20 Gen 5 with a complete OEM MOS slide built for power, precision, and modern optics compatibility. Engineered for the 10mm platform, this slide delivers exceptional durability, reliable cycling, and enhanced control—ideal for duty, hunting, or defensive applications.

Product Description | Specs for Glock 20 Gen 5 MOS Complete OEM Slide

Glock manufactures the Glock 20 Gen 5 MOS complete slide to strict factory specifications, ensuring seamless compatibility with Gen 5 frames and 10mm Auto components. Precision-machined from high-strength steel, the slide features Glock’s advanced nDLC finish for superior resistance to wear and corrosion.

The MOS (Modular Optic System) configuration allows you to mount popular red dot optics using adapter plates, giving you faster target acquisition and improved shooting performance.

What’s Included For Glock 20 Gen 5 MOS Complete Slide

A complete OEM slide comes fully assembled and ready for installation. It typically includes:

• Glock 20 Gen 5 MOS OEM slide
• MOS optics cut with cover plate
• 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, variant dependent)

Specifications

• Model: Glock 20 Gen 5 MOS Slide
• Manufacturer: Glock (OEM)
• Material: Heat-treated steel
• Finish: Glock nDLC coating
• Caliber: 10mm Auto
• Compatibility: Glock 20 Gen 5 frames and components
• Serrations: Front and rear serrations
• Optics Cut: Yes (MOS system with adapter plates)
• Sights: OEM Glock-pattern sights

How to Install a Glock 20 Gen 5 MOS Slide

Install the Slide

• Confirm the firearm is unloaded and safe
• Remove the existing slide from the frame
• Install or transfer the barrel and recoil spring assembly
• Align the slide with the frame rails and attach

Function Check

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

(Follow Glock armorer guidelines for safe installation.)

How To Disable a Glock 20 Gen 5 MOS Slide

• Remove the slide assembly and store it separately
• Store magazines and ammunition in separate locations
• Use a cable or trigger lock on the frame
• Secure all components in a locked container or safe

Compatibility

• Fits: Glock 20 Gen 5 frames
• Barrels: Glock 20 Gen 5 10mm barrels
• Recoil System: Gen 5 recoil spring assembly
• Sights: Glock OEM-pattern sights
• Gen Mix: Not recommended to mix with earlier generations due to design differences.

What’s the Glock 20 Gen 5 MOS Slide Made Of?

Glock machines OEM slides from high-strength steel and applies its nDLC finish for enhanced durability and corrosion resistance. The Gen 5 design also includes improved ergonomics and internal refinements to increase reliability and performance.

Customization Options

• Optics: Compatible with multiple red dot sights via MOS plates
• Sights: Upgrade to night sights or suppressor-height sights
• Barrels: Standard or threaded Glock 20 Gen 5 barrels
• Internals: OEM or aftermarket upgrades
• Finish Mods: Cerakote or custom refinishing

Note: Always function-test after any modifications.

FAQs

Q: What is the MOS system?
MOS (Modular Optic System) allows you to mount red dot optics using adapter plates.

Q: Is this slide optics-ready out of the box?
Yes. It includes an MOS cut and cover plate for optic installation.

Q: Is this a complete slide?
Yes. It comes fully assembled with internal components and sights.

Q: Will this fit earlier Glock 20 generations?
No. Gen 5 slides are designed specifically for Gen 5 frames.

Q: Is it suitable for full-power 10mm loads?
Yes. It is built to handle the performance demands of 10mm Auto.

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 related marks. We use “GLOCK” only to identify parts and products that fit or work with GLOCK pistols.