Very nice little collimator, just right for mounting somewhere on the side of a rifle. The whole thing is almost unnoticeable after mounting. The dot is not super precise, but that's not what the collimator is for. The build quality is very good.
Theta Optics Rugged Mini Reflex Collimator - Black
Reflex sight featuring a lightweight, low-profile design, ideal for installation on a 22 mm RIS rail. The housing, crafted from 6061-T6 aluminum using CNC machining and protected by HA TYPE II hard anodizing, delivers exceptional strength and resistance to harsh environmental conditions. Powered by a CR2032 battery, allowing for extended use without frequent battery changes.
Water and shock resistant
Engineered to endure impacts up to 800G, the sight adheres to the IPX7 standard, providing water resistance for immersion up to 1 meter for 30 minutes. Delivers reliable performance during dynamic operations and in variable weather conditions.
Clear image and precise dot
Equipped with a 23.8 x 16.7 mm lens featuring Anti-Reflex, UV, Anti-fog, and Scratch resistant coatings. The red dot sight provides a 3.5 MOA aiming point and offers 10-level brightness adjustment. Reflex sight enables fine-tuned vertical and horizontal calibration for precision targeting.
Set elements
- Theta Optics Durable Mini Reflex Sight
- protective cover
- installation key
Main features
- CNC-machined 6061-T6 aluminum housing
- Protected with HA TYPE II hard anodizing
- 23.8 × 16.7 mm lens features Anti-Reflex, UV, Anti-fog, and Scratch-resistant coatings
- 3.5 MOA red dot with 10-level adjustable brightness
- Elevation and windage adjustment capability
- Withstands shocks up to 800G
- IPX7 waterproof rating (can be submerged up to 1 m for 30 minutes)
- Powered by a CR2032 battery
| Red-dot mount type | Weaver |
|---|---|
| Mount type | Exchangable plates |
| Objective lens diameter | 23,8 x 16,7 mm |
| Aiming point size | 3,5 MOA |
| Reticle color | Red |
| Backlight adjustment | Yes |
| Reticle adjustment | Smooth |
| Accumulator/battery type | 1x CR2032 |
| Power type | Battery |
| Weight | 60 g |
| EAN | 5902543080035 |
| Manufacturer code | THO-10-037705 |
| Brand | Theta Optics |
| EAN |
Reviews with photos
Review summary
Number of reviews: 12
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Very solidly made collimator. Holds zero well. 10-step brightness adjustment and smooth vertical and horizontal adjustment work very well. Mounted as an auxiliary on an angled mount, it performs great. Automatic shut-off when the cover is put on works, so the battery lasts a long time. In this price range, I highly recommend it.
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I am 100% satisfied, that's exactly what I was looking for. Mounted on SpecnaArms SA-BO2. Exactly on the Monolith Theta Optics closed collimator ...available in the store. It's a bit strange that the method for turning it on and off was not described in the manual.
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The dot is terribly blurry, in my unit it was not possible to change the brightness or turn it off, I'm returning it tomorrow, but the collimator itself is nice and good quality.
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Very good Reflex, after slightly raising the RIS rail on the JG MP5 it fits perfectly. The workmanship seems very solid, and the lens nicely reflects light. The only remark is the battery installation, for which you have to unscrew the sight from the rail.
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A solid and very well made collimator. Used in various conditions and fulfilled its tasks. I am very pleased with the purchase. Worth its price. I recommend it.
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Very nice mini collimator. Fits perfectly to the Umarex Tornado revolver. The dot is clearly visible, 10 levels of brightness for it. For those who don't know - to completely turn off the collimator you need to simultaneously press and hold the + and - buttons on both sides of the device for a few seconds, which are used to adjust the brightness of the aiming dot. To sum up, I definitely recommend it.
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Great mini collimator, on a sunny day the dot is very visible, in my unit the dot is very evenly focused. The price is very affordable, well made, big plus for the rubber cover on the collimator.
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For this price, this collimator should be considered good. The dot is quite precise. You just need to solve the puzzle of turning it off to zero. Apart from that, I recommend it to airgun users.
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Good collimator for little money. Unfortunately, I returned it because it was not really possible to mount it, as the Diana has an 11mm rail and the adapter raised the collimator too high. Changing the battery is very inconvenient, you have to disassemble the collimator, so you have to re-zero it again.
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The collimator is of very good quality, the dot is precise, small, slightly blurred on the side, but it does not affect aiming. Changing the battery is very difficult because you have to unscrew the collimator. Unfortunately, I have to return the collimator because it does not fit my rail, I have the old RIS type with a different slot spacing.
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A good quality collimator at a reasonable price. High resistance to shocks and water resistance are a plus. The battery lasts quite a long time. I can recommend it for testing.
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