OSIGHT SE Enclosed Micro Red Dot Sight - RMSc/K Footprint Compatible | 2 MOA Dot & 32 MOA Circle Dual Reticle System | Durable Compact Reflex Sight
Condition: New
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Availability:
15 left in stock
Arrives
Friday, Feb 6
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Features
- Enclosed Emitter Optic: Designed with a fully sealed system, the optic offers unmatched protection against the elements, ensuring reliable performance in any environment.
- Aspherical Lens: The aspherical lens ensures zero distortion and parallax-free performance, delivering exceptional clarity through the large window for rapid and precise target acquisition.
- Side Load Battery: Effortless battery replacement without removing the optic ensures hassle-free re-zeroing. A premium-grade battery features easy accessibility but still offers steady performance.
- RMSc Footprint: Fitting directly to your optics-ready slides, the compact optic delivers exceptional compatibility, ensuring seamless integration across a multitude of builds.
- 2 MOA Dot & 32 MOA Circle: Switching between dot-and-circle, dot-only, or circle-only reticles, you can tailor your aiming solution to any operational conditions. The sharp and bright dot-and-circle reticle provides a cutting-edge aiming experience.
Brand: Osight
Color: Black
Style: High-Tech, Compact, Professional
Sport: Hunting
Item Weight: 27.5 Grams
Material: Aluminum
Compatible Devices: Handgun
Mounting Type: Integral Mount
Night vision: No
Thread Type: RMSc/K
Brand: Osight
Color: Black
Style: High-Tech, Compact, Professional
Sport: Hunting
Item Weight: 27.5 Grams
Material: Aluminum
Compatible Devices: Handgun
Mounting Type: Integral Mount
Night vision: No
Thread Type: RMSc/K
Model Name: US-OSIGHTSE-RD-300115
Manufacturer: Osight
Reticle Type: Dual Reticle
Item Package Dimensions L x W x H: 4.73 x 4.69 x 1.73 inches
Package Weight: 0.25 Kilograms
Brand Name: Osight
Warranty Description: Lifetime Warranty
Suggested Users: unisex-adult
Included Components: Adjustment Tool × 1, Battery Compartment Screw x 2, Cleaning Cloth × 1; User Manual × 1, Osight SE Screw Kit x 1, Osight SE x 1
Date First Available: June 24, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Feb 6
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This is an incredible Red dot optic for your tools! I have astigmatism and was worried about a blurry reticle from a lower priced manufacturer but Im happy to say that the Osight SE OUTPERFORMED my highest hopes and performs at least as well as higher priced competitors! The SE uses an aspherical lens which creates a sharp and bright reticle without any starburst distortion. The optic is very well built and feels solid in hand and fit my optic cut without any slop. Osight generously includes a variety of screws and an installation tool so there is no need to shop for screws or tools to attach the sight, EVERYTHING is in the box, which is impressive for a lower cost optic. The only downside is that it does not have auto brightness adjustment, but Im sure that would increase the price, so its a trade-off I can live with. Osight also sells a high quality RMR adapter plate for about $20 that allows a seamless fit on full size tools too!
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Reviewed in the United States on January 6, 2026 by Aaron Braga
I'm thrilled with my Olight Arkfield Pro Ultra, which saved my butt on a moose hunt in Maine earlier this year so I decided to give them a shot on the red dot. I got this red dot for my new M&P Shield X, it fits nicely and has a clean dot image. I prefer the 2 MOA dot only, not the ring, however both are nice and clear even with my slight astigmatism. I also tried the OSIGHT SE Green 6 MOA dot, it may just be me, but that dot bloomed a lot for me and wasn't clear/crisp, I returned it. The enclosed emitter is awesome for CCW, no lint/dirt/dust can get "inside" the frame of the red dot. The hardware kit it comes with is awesome. I've only got a couple hundred rounds through the gun, but it's holding zero perfectly (I'll update here if that changes). I like this so much I actually sent my M&P 2.0 Compact out to get the optic cut milled and bought another OSIGHT SE Red Dot. I prefer the smaller, more narrow profile than the larger X version (or competitors' larger sights). People online (Reddit) love to hate on OSight for no good reason, but I'm a huge fan so far.
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Reviewed in the United States on December 19, 2025 by Zach
I’m initially very impressed with this sight, especially for the price. I’ll reserve judgment on durability for later (and will update this review accordingly), but the rugged build quality, mounting fit, very clear lenses, and extremely sharp reticle are all extremely good. I wish it were available in a green reticle as that is my preference (supposedly coming available), but this has the clearest reticle for my personal astigmatism out of all my many red and green dot sights. The only other reticle that probably bests it is in an Eotech Vudu LPVO, although that one is also etched so perhaps not the best comparison. The shake awake feature also works precisely as described, turning off at exactly three minutes, and coming on instantly at the slightest touch. If it holds zero, remains durable, and the battery life is as advertised, I’ll likely purchase more for other pistols. At this point, highly recommended! UPDATE: After several hundred rounds on a 43X, this optic holds zero well, and is still as crisp and clear as the day I bought it. Checked torque on mounting screws and still tight as torqued. No issues with battery life or shake awake. Very impressed with the durability, so much so I bought a second one for use as an offset sight on a carbine. Still wish the multi-reticle would get available in green (6 MOA green dot now available). Great sight!
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Reviewed in the United States on October 31, 2025 by Matt
*Week one of ownership* This is fantastic! Like a game cheat code for your pistol! Simply put the dot on the target and squeeze the trigger. LOVE the 2MOA dot only--32MOA circle only--2MOA dot w/ 32MOA circle options for this optic. I use different ones for different setups/applications. Like having 3 in 1 optics. It is a red dot. I prefer red dots to greens personally. Clear and crisp view window. Co-witnesses very well with SF Echelon, FN Reflex XL ect that have the direct to frame RMSc mounting systems or ones with suppressor ready sights. Compare to Holosun. (<---it's what I did) I believe it compares very well. I like the SE's side mounted battery. Not a fan of the charger cover models. Mounted very easy. I am mechanically inclined but have never mounted anything on a pistol before and had no issues. I do recommend using a torque screwdriver to get the proper inch-lbs on the mounting screws as well as using loctite blue. I used a bore sight laser to zero it and was spot on the first time at the range with no drift over time. Very sturdy and durable. I used the optic to work the slide with no issues. The price point Osight is coming in with and the sale right now makes this a no brainer.
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Reviewed in the United States on January 17, 2026 by XTR3M368
We installed the SE red dot sight on our Sig 365. The sight was a perfect fit. The sight included quality mounting screws with a nice installation and adjustment tool. We went immediately to the range to try it out. Only required slight elevation adjustment and a few clicks to the right. We shot 150 rounds with no sight deviation. Amazing quality for the price, high quality and robustness. I just ordered a green dot SE version and will order another one later for my daughter. The higher priced competitors need to be concerned.
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Reviewed in the United States on December 11, 2025 by Gismo