Theta Optics Open II reflex sight Black

A... Review confirmed by purchase

80%

07.02.2026

Review for model:

The collimator is very well made with a great ability to change the reticle. The downside is that it won't work in every environment; under tough conditions, the laser might simply get clogged, which will make it impossible to use.

A... Review confirmed by purchase

80%

06.07.2025

Review for model:

Very good collimator. Well made with a lot of options to change the reticle. However, since it's open, the reticle can blur, which doesn't happen with closed collimators, but if you don't use it in very demanding terrain, it will definitely work.

A... Review confirmed by purchase

80%

29.12.2023

Review for model:

The collimator is fine, but it's not the perfect solution. The laser pointer is a bit blurry and unclear. The closed collimator from the same company works definitely better.

I've been using it for over a year. Very good collimator for the money. Above all, it's clear, holds well. Batteries have a long lifespan. Definitely recommend.

K... Review confirmed by purchase

100%

26.07.2023

Review for model:

Collimator is OK. So far, everything works great. The ability to change the sights is a good feature. But why does the description say LR41 batteries, when the collimator uses LR44 batteries?

P... Review confirmed by purchase

100%

14.06.2023

Review for model:

Good, budget-friendly, and great-looking collimator. At this price, it's hard to find something better.

P... Review confirmed by purchase

100%

23.05.2023

Review for model:

Great collimator, easy to use and adjust, amazing in this budget.

Very nice and budget-friendly collimator. Setting it up takes patience and precision. Once you get that done, shooting is even more enjoyable. Highly recommend to everyone!

Very good collimator. Lots of options to choose from. Solid and durable, looks great.

Very high-quality collimator, which sits on a Crosman Crosman Panther Arms DPMS SBR. In my opinion, it looks really great. Everything works as it should. Definitely recommend.

It's mounted on a Zoraki Ultra. Fits perfectly. Build and operation are without complaint. Recommend.

My unit works on a Zoraki Ultra. I was looking for a collimator for a somewhat specific mounting rail in this pistol and it worked out. The workmanship is perfect.

Very good collimator. Fits perfectly. Well made. Durable. Fits submachine guns. Recommend.

Thank you for the product! 5 stars!

Great sight, has 4 different aiming marks and two colors (red and green), adjustment is easy. The description said no battery, but I got one in the set — a pleasant surprise. I recommend the sight and the store.