The OSight SE MOS Enclosed Red Dot Sight (brand part no. OSIGHTSEMOS) is a direct-mount optic built to bolt straight onto a full-size MOS-pattern slide without an adapter plate. OSight fully encloses the emitter to keep debris and moisture off the glass, pairs it with an aspherical lens for distortion-free, parallax-free clarity, and includes a Multi-Reticle System that switches between a 2 MOA dot, a 32 MOA circle, or both together. A side-loading battery tray lets you swap the battery without removing the sight from the slide, and a built-in motion sensor wakes the dot when the pistol moves and sleeps it when still. Among red dot sights, the SE MOS suits carry and duty shooters who want a direct-fit enclosed optic without buying a separate mounting plate.

Key Specifications

• The reticle is a Multi-Reticle System — a 2 MOA dot, a 32 MOA circle, or both together.
• The reticle color is red.
• The magnification is 1x.
• The mount is a direct MOS fit for full-size MOS-pattern slides, no adapter plate needed.
• The emitter is fully enclosed, sealing out debris and moisture.
• The lens is aspherical, for distortion-free, parallax-free clarity.
• The battery is side-loading, so it swaps without removing the sight.
• A built-in motion sensor wakes the dot on movement and sleeps it when still.

Frequently Asked Questions

Does this need an adapter plate? No, it’s a direct-mount optic built for full-size MOS-pattern slides.

Can I switch between reticles? Yes, the Multi-Reticle System offers a 2 MOA dot, a 32 MOA circle, or both together.

How do I change the battery? It uses a side-loading battery tray, so you can swap it without taking the sight off the slide.

Buy the OSight SE MOS Enclosed Red Dot Sight

A direct-fit, enclosed optic with reticle flexibility built in is exactly what the SE MOS delivers. Order it from our Lubbock, Texas gun shop and it ships fast to your door.