Glock 43/43X Complete Slide Kit

The build-your-own complete slide kit for Glock 43 / 43X is built for shooters who want a slim, lightweight upper without sacrificing reliability or fit. Instead of adapting your setup to a fixed configuration, you control every major component so the finished slide kit matches how you actually shoot.

First, you select the optic configuration. You can choose RMSc, 507K, EPS Carry, or no optic cut at all. Because we machine the optic cut during the build process, the slide maintains correct depth and alignment. As a result, your optic mounts securely and holds zero, even during extended use.

Next, you configure the barrel. You can choose a standard 9mm barrel for a clean carry setup, or you can select a threaded barrel if your build requires muzzle-device compatibility. Since Glock 43 and 43X slides operate with reduced mass, we match barrel options carefully to preserve reliable cycling.

After that, you choose your sights. Suppressor-height sights support optic co-witnessing, while night sights or fiber optic sights work well for iron-sight users. However, if you prefer a dedicated optic build, you can also select no sights.

Then, you select the finish. Options include over 30 Cerakote H-Series colors, DLC finishes, or raw stainless. Each finish protects the slide against wear while maintaining a clean, low-profile appearance that suits concealed carry.

Finally, we install all internal slide components and pair them with the correct Glock 43 / 43X recoil system. We then function-test every build-your-own complete slide kit for Glock 43 / 43X before shipping. Because we configure every component specifically for slim-frame geometry, the finished slide kit installs directly onto compatible frames without fitting.

Fitment & Compatibility

Specification	Details
Model	Glock 43 / Glock 43X
Generation	Gen 3 / Slimline
Caliber	9mm
Frame Compatibility	Glock 43 & Glock 43X OEM frames
Not Compatible With	Glock 48 or double-stack frames

Customization Options

Component	Available Options
Optic Cut	RMSc, 507K, EPS Carry, none
Barrel	Standard 9mm, threaded
Finish	Cerakote (30+ colors), DLC, raw
Sights	Suppressor-height, night sights, fiber optic, none
Internals	Fully installed slide components
Assembly	Complete slide kit with recoil system

What’s Included in the Slide Kit

Included Item	Status
Glock 43 / 43X slide	Included
Selected 9mm barrel	Included
Recoil assembly	Included
Internal slide components	Installed
Sights (if selected)	Installed
Function testing	Completed before shipment