Osight SE
Osight SE Red and Green Dot Sights
Osight SE optics are compact enclosed reflex sights built around the RMSc footprint for slim and compact handgun setups. Available models include red and green reticle options with 2 MOA dot, 6 MOA dot, and circle-dot configurations.
Features include a enclosed emitter housings, side-loading batteries, adjustable brightness settings, motion sensor activation, and compact profiles suited for carry, range use, and general defensive applications.
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Frequently Asked Questions
What is the OSight SE series?
The OSight SE series is a compact enclosed-emitter red dot lineup designed for slim and compact pistol setups. The SE models use the RMSc footprint, making them a practical option for many optics-ready carry pistols, micro-compacts, and subcompact handguns that accept RMSc-pattern optics.
The main appeal of the OSight SE series is that it gives shooters an enclosed optic design in a small pistol-friendly package, with options for red or green reticles, simple dot models, and multi-reticle circle-dot models.
What footprint does the OSight SE use?
The OSight SE uses the RMSc footprint. That makes it suitable for many optics-ready compact and slimline handgun slides, but fitment still depends on the exact pistol, factory cut, plate system, and screw setup.
Before ordering, check your handgun’s optic cut or adapter plate to confirm RMSc compatibility. Some pistols will mount directly, while others may require a plate.
Is the OSight SE an enclosed emitter optic?
Yes. The OSight SE is an enclosed emitter pistol optic. Unlike an open-emitter red dot, the emitter is protected inside the optic housing, which helps reduce exposure to lint, dust, moisture, and debris.
That makes the SE series appealing for shooters who want a compact carry optic with more emitter protection than a traditional open reflex sight.
What reticle options are available in the OSight SE series?
The OSight SE series includes models with different reticle options depending on the variant. Common options include a 6 MOA dot and a 2 MOA dot with 32 MOA circle multi-reticle system.
The 6 MOA dot is easy to pick up quickly and works well for close-range pistol shooting. The 2 MOA dot and 32 MOA circle version gives shooters more flexibility, allowing them to choose a finer aiming point, a larger circle, or a combined circle-dot reticle depending on the situation.
Does the OSight SE come in red and green reticle versions?
Yes. The OSight SE series includes red and green reticle options depending on the model. Red reticles are familiar, easy to use, and work well for most shooters. Green reticles can appear brighter or easier to pick up for some eyes, especially in daylight or against certain backgrounds.
The best choice comes down to personal preference, your eyesight, and the environments where you expect to use the optic.
What battery does the OSight SE use?
The OSight SE uses a side-loading CR1620 battery. The side-loading design allows the battery to be changed without removing the optic from the slide, which helps avoid unnecessary re-zeroing after a battery swap.
This is one of the big differences between the OSight SE and some earlier OSight models that focused more heavily on rechargeable charging-cover designs.