In this Olight Osight review after 1 year, here are things I need to update if you're interested checking out this red dot product.
While there are brand fan boys on expensive American products like the Trijicon, but the price for these products are just way out of reach for some users.
With insane inflation, buying a $500 red dot isn't what people are looking for, and spending more doesn't mean better quality, and this is where Olight Osight comes in.
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Olight Osight Review After 1 Year
The Olight Osight is rechargeable if you put this battery pack cover on top. The optic itself doesn't have any charging port, and the charging port is on the top of the window.
The optic window is similar to a Trijicon SRO and narrower than the Holosun 507 comp.
Oh by the way, the Olight Osight is featured with full fidelity in the game Delta Force.
Likes
- Big window
- Optional rear iron sight to cowitness
- Very positive turret dial
- Recessed window for glass impact durability
- Plenty of brightness adjustment
Dislikes
- Requires a super thin flat head to dial the turret
- Open emitter (Okay for normal range use)
- Can shear mounting screws if slamming it on non wedged slide install
Olight Osight Spec
- Footprint: RMR
- Dot Size: 3 MOA
- Dot Colors: Red or Green (Sold separtely)
- Length: 1.77"
- Width: 1.18"
- Height: 1.29"
- Body: 7075 T6 aluminum
- Design: Open emitter
- Color: Black & OD Green
- Battery: Rechargeable
- Waterproof: IPX6
The large window size makes the Osight an affordable option for shooting competition and range use. Its square ish window shape stretches fairly tall for faster dot tracking just like the Trijicon SRO.
The Osight is very similar to the Holosun 507 comp as far as body profile goes. The lens frame doesn't overhang ejection port when mounted on something like the FN 509 to prevent ejection malfunction.
Olight Osight Construction
The Osight's overall construction is very good. It doesn't feel cheap at all. It's 7075 T6 aluminum aerospace grade body.
Just look at this. Even though this is Olight's first attempt to make a red dot sight. Given their years of experience making light products, the Osight looks good and it works just like a high end optic.
I mean it's 2024, most manufacturers at this point can at least make good quality red dot sights and even the cheapest ones on the market have impressive machining and coating.
However, as far as the hood of the optic goes, the durability is not so strong as expected due to the built in charging port and internal circuits, which can compromise strength compared to a full solid frame.
Unless Olight makes it thicker for the version 2, so far some duty grade testers have broken them simply by dropping it on the ground not even at 5 feet height. For our testing, we are focusing on its range performance first without judging it based on duty grade performance spec.
The Osight feels pretty beefy like the Holosun 507 comp with its RMR footprint, but we will still have to put it to the test with some beating.
So far it has only gone with about 200 rounds on the range on the FN 509 and Springfield Echelon.
One thing to point out is that the large window frame really makes a big difference when co-witnessing the iron sights, especially tall iron sights. There is still more room to see the target without the tall iron sight completely covering up the sight picture.
Waterproof Performance
The optic is water-resistant, features an open emitter design, and is rated IPX 6.
Since the winter season has recently ended, I haven't had the opportunity to test it in snowy weather. However, based on my experience with many other open emitter optics, I already anticipate that it will NOT perform well in snowy or rainy conditions.
One aspect I find concerning is the charging port on top; if water enters and I do not clean it quickly, it can cause rust if not cleaned before putting it away.
Reticle Options
The Osight comes with a 3 MOA dot either in red or green. Red and green are sold separately.
The 3 MOA dot appears sharp if you wear glasses. For those with astigmatism, the dot may not appear sharp and it's expected.
You can learn about the difference between red and green here, it's all based on personal preference, and it's not a solution for astigmatism.
The optic also features motion sensor function that will turn off the dot after 10 minutes of inactivity to save battery. I can also completely turn off the optic by pressing the "-" and "+" button for about 0.5 secon