Plus: Custom-Fit Holsters Available at Slim Fit Holsters
If you’re running a Glock 43X MOS or Glock 48 MOS (or any of their MOS variants), finding a rail-mounted weapon light that actually fits the slim frame can be a hassle. The factory MOS rail is narrower than standard Glock rails, which rules out most full-size light options—unless you’re using the right hardware.
Enter the Olight 43X/48 MOS Rail Mount—engineered specifically for Glock’s slimline MOS models. This adapter makes it possible to mount compact weapon lights like the Baldr Mini, Baldr S, Baldr RL Mini, PL-Mini 2, and PL-Mini 3 with a secure and streamlined fit. These lights deliver powerful output in a compact form factor, ideal for concealed carry setups.
Built for Compact Performance
This rail mount isn’t a universal workaround—it’s built precisely to match the unique specs of the Glock 43X/48 MOS rail system. No overhang, no wobble. The mount locks in tight and provides a rock-solid platform for your Olight light of choice.
Whether you’re looking for a white light only, or a combo with laser (like the Baldr S or Baldr RL Mini), this rail mount opens up options without compromising concealability.

Holsters That Actually Fit – Right Here
At Slim Fit Holsters, we’ve already got you covered.
We make holsters that are custom-formed to fit these exact setups. Whether you’re running a 43X MOS with a PL-Mini 2, or a 48 MOS with a Baldr Mini, we build holsters to accommodate the extra rail length and light dimensions without sacrificing comfort, concealment, or retention.
- Appendix and OWB options available
- Full light-bearing fitment for all listed Olight mini and baldr models
- Secure retention tuned for your light model
- Optional wedges, wings, and belt attachments for customization
Just choose your Glock model and light combo on our website, and we’ll take care of the rest.
Compatibility Summary
Olight Rail Mount Fits:
- Glock 43X MOS
- Glock 48 MOS
- Other variants with slim MOS rails
Supported Olight Lights:
- PL-Mini 2 Valkyrie
- PL-Mini 3
- Baldr Mini (White + Green Laser)
- Baldr S (White + Green Laser)
- Baldr RL Mini (White + Red Laser)
Final Thoughts
The Olight Rail Mount for Glock 43X/48 MOS gives you real weapon light options on slimline pistols—and we make the holsters to match. Don’t settle for a generic fit. Get a purpose-built setup from Slim Fit Holsters, and carry with confidence.

