Osight SE enclosed red dot sight mounted on a pistol

Osight SE

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Osight SE Enclosed Red and Green Dot Sights

The Osight SE brings an enclosed emitter and easy battery access to your everyday pistol. Its protected optical system helps keep dust and moisture away from the emitter, while the side-loading tray lets you replace the battery without removing the sight. Choose an RMSc, MOS or DPP version to suit your setup.

RMSc: Red or Green, Dot or Circle-Dot

The RMSc SE gives you four choices. Pick the 2 MOA red dot with 32 MOA circle or 2 MOA green dot with 32 MOA circle for a selectable dot, circle or combined reticle. Prefer a larger, uncluttered aiming point? The 6 MOA red dot and 6 MOA green dot keep things simple. Each uses a compact RMSc footprint and a side-loading CR1620 battery.

Osight SE MOS: A Direct-Mount Option

The Osight SE MOS fits compatible full-size Glock MOS slides directly, without an adapter plate. It combines a red 2 MOA dot and 32 MOA circle with a side-loading CR1632 battery. This is the dedicated MOS version, not the RMSc model.

Osight SE DPP: A Larger Viewing Window

The Osight SE DPP brings the enclosed SE design to a DeltaPoint Pro-pattern footprint. Its 0.91 x 0.71-inch window is larger than the RMSc SE window, and its red multi-reticle system offers a 2 MOA dot, 32 MOA circle or both together. Battery changes use a side-loading CR1620 tray.

Choose Your Sight Picture

A 2 MOA dot covers less of the target; a 6 MOA dot provides a bolder aiming point. The circle-dot models let you change the reticle layout without changing optics. For a closer look at the compact RMSc options alongside rechargeable and open-emitter alternatives, read our Osight SE vs S vs K comparison.

Frequently Asked Questions

What footprint does the Osight SE use?

The standard SE uses RMSc. The SE MOS is made for compatible full-size Glock MOS slides, and the SE DPP uses the DeltaPoint Pro pattern. These are different mounting systems, not interchangeable versions of one footprint.

Which Osight SE models come in green?

The RMSc SE is offered with a green 6 MOA dot or a green 2 MOA dot and 32 MOA circle. The MOS and DPP models shown here have red reticles.

Can I change the Osight SE reticle?

The 2 MOA dot and 32 MOA circle models let you select dot-only, circle-only or circle-dot. The 6 MOA versions use a single dot and do not have a circle setting.

What battery does the Osight SE take?

The RMSc SE and SE DPP use CR1620 batteries. The SE MOS uses a CR1632. All have side-loading trays, so the sight can stay mounted during a battery change.

Is every Osight SE an enclosed sight?

Yes. RMSc, MOS and DPP SE models use enclosed emitters. Their mounting patterns and some dimensions differ, but each protects the emitter inside the housing.

How is the Osight SE different from the Osight S?

The SE uses a replaceable battery, while the S uses a rechargeable battery with a magnetic charging cover. Both offer enclosed designs, but the SE family also includes dedicated MOS and DPP versions.