If you want to upgrade the Glock 43 MOS slide or to create a custom build Glock 43.

Here are 5 Glock 43 slide with optic cuts with a wide range of features including slick slide cuts, lightweight construction, coating and enhanced functionality.

We've selected these Glock 43X slide kit options based on a combination of their appearance, weight, and overall performance.

Note: Glock 42 and 43 slides DO NOT require firing pin channel liners because they are slimline carry Glocks.

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Best Glock 43 Slide Kit [Optic Ready]

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TRYBE Defense Glock 43/43X Pistol Slide Version 2 Up to 24% Off  w/ Free Shipping  — 2 models

TRYBE Defense makes popular Glock slide products at good prices. Their Glock 43 compensated slide and barrel set has a nice grip and looks great.

Cover Plate Included - All optic ready slides come with cover plates. Works for Polymer 80 builds as well

Faster Follow Up - Lighter slide to reduce recoil momentum to reacquire the sight faster

Show Off Barrel - Side windows shows off the slick custom barrel you have

Lightening Cuts - Improved for fast cycling and aggressive serration

Better Optics Compatibility - RMSc

*Get a TRYBE Defense threaded match grade barrel here


  • Optic ready right out of the box
  • Serrated slide with Cerakote 
  • Compensated slide
  • Corrision resistent
  • Window cuts to show off barrel design


  • RMSc Only
  • Window cuts may not be field reliable

Brownell Glock 43 Slide RMRcc - Trijicon RMRcc Ready

glock 43x mos slide

The Brownell Glock 43X MOS slide for RMRcc is ready right out of the box. It features index posts in the mounting holes for improved screw thread contact and a secure optic mount.

Made of 17-4 stainless steel, this slide has standard grip serrations (no markings) and provides the same feel as the original Glock 43 slide without a rear sight.

If you have a Glock 43X MOS and want to use an RMRcc, this precut slide is the perfect solution for you!

Optics Compatibility - RMRcc ONLY

Grey Ghost Precision - Best Serration Patterns

Grey Ghost Precision Glock 43 Stripped Slide, Version 2 - Diamond Checkering Pattern, 17-4PH Stainless Steel, DLC, Black, GGP-SPG43-V2-BLK

Grey Ghost Precision offers ZEV alike Glock 43X optics ready slide kit with aggressive serration cuts. The new Holosun 407K, 507K and EPS Carry will all fit on this slide. 6-32 smaller mounting screw is needed for mounting these optics.

V1 & V2 - Angled serrations or diamond checkering pattern for different variation

Gen 5 Compatible - The V2 version is compatible with Gen 5 Glock 43 and Glock 43X

Compatible With OEM Parts - It works with existing Glock 43 internal parts & Polymer 80 lowers

Optics Compatibility - RMSc footprint only


  • Unique slide front cut
  • Works with SS80 Glock 43 build
  • Tighter tolerance
  • Comes with cover plate


  • Comes with no iron sights
  • RMR doesn't fit, but it's okay

Agency Arms Hybrid Special - High End Glock 43 Slide

Agency Arms Hybrid Special Glock 43/43X Stripped Precut Pistol Slide, Black, G43-H-SL

Agency Arms Glock 43 custom slide will tricks out your stock Glock 43 to another level. This is the highest premium quality 17-4 stainless steel striped Glock 43 slide on the market. It's precut with lightening cuts, serrations and the signature Agency Arm logo.

Rock Solid Coating - Diamond like carbon finishes to give that super slick gun feel

Fits All Glock 43 Frames - It works on Glock 43 and Glock 43X frames

Recoil Reduction Supported - Cut out on the top of the slide allows gas escape for a ported barrel

Slick Aesthetics - Looks matters, and this delivers for a Glock 43 slide

Optics Compatibility - RMSc only


  • Very slick design
  • Works for ported barrel
  • Very high quality coating
  • The ultimate eye candy


  • Very Expensive
  • RMSc only (RMRcc doesn't fit)

Norsso Singularity Slide - Best Serration Cuts

glock 43 complete slide

Norsso makes a top-quality Glock 43X stainless steel slide. Out of many options, we recommend this one the most.

Side window serrations can help index the support hand slightly to manage recoil.

The N43 Singularity slide is ready for optics and works with ones like the Shield RMSc, Holosun 507K, Romeo Zero, and Swampfox Sentinel.

A special feature of this Glock 43X slide is the sharp rear edges that help you grip it without it slipping. Besides their regular items, Norsso can also make custom slides based on what you want o their website.


Does A Glock 43X Slide Work With Polymer 80 PF9SS Frame?

Yes. These recommended slides work for Polymer 80 PF9SS frame.

Are Optic Cuts Worth It?

glock 43x slide with red dot

The factory Glock 43 slide works just fine to mount optics with compatible optic plates. We recommend CHPWS plates.

If you want to mount an optic without having to mill it or buy a Glock 43 MOS, an optic ready Glock slide is here for you.

In addition, these slides offer better aesthetics, serration patterns and overall feel.

How Long Is A Glock 43 Slide?

A Glock 43 slide measures 6.06 inches. Most aftermarket Glock slides will work with your existing holsters (Except for using a compensator)

How To Mount A RMRcc On A Glock 43?

To mount a RMRcc on a Glock 43 slide, it's best to mill the holes on a blank factory Glock 43 Slide (Non- MOS). This is way better option than buying adapter plates that end up mounting the optic too tall.

Most optic ready Glock 43 slides are milled for RMSc. Get the Brownell slide we recommended above for RMRcc