To begin with, since this is my first Steiner optic, I can’t dive into an in-depth analysis of the MPS. I also own a Chinese EOTech clone and a Monstrum Ghost Gen 3 1x20, and I decided to leave all three outside at –15°C for several hours. Once I brought them back inside, to my surprise even the Chinese clone didn’t fog up internally. So maybe this test isn’t enough to determine whether the MPS is truly worth it!
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That said, I can definitely confirm some of the usual facts: the MPS has a very clear window, a true 1x, and it’s essentially parallax-free beyond 25 meters. One important thing: this version has a few differences compared to the original MPS. The side buttons have been removed and replaced with a rotary dial integrated into the battery compartment. It only has three brightness settings, and they’re all fairly intense. You’ll probably keep it on the first setting in most situations. The third setting is so bright that it produces a bit of blooming and reflections. Personally, I would’ve preferred lower settings and even NV modes, but overall it gets the job done.
Also worth noting: this is a circle red dot, not a simple dot like the original model. Imagine a circle reticle in such a small window, positioned at some distance from your eye on the Accro mount, it ends up taking quite a lot of visual space. Not necessarily a bad thing, though.
For those who prefer running the optic closer to the eye, a Picatinny adapter is included, but you’ll lose co-witness with the ghost ring sights. And just so you know, this version also lacks auto-off and shake-awake features.
All in all, I really like this optic and I’m confident it’ll last for years. I actually found a pretty interesting video that you might not have seen, since it doesn’t talk specifically about the MPS but about common issues with most enclosed red dots. Interestingly, they mention the MPS as one of only two optics that survived the test.
Another interesting video
By the way, I love the M4 stock, but I do wish it had more adjustment positions. I still managed to find a setting where my cheek weld lines my eye up perfectly with the irons. My last point is about the grip: I like holding the gun with my support hand at 9 o’clock and my thumb at 12. The problem is that if you use that grip, you’ll see your thumb in the sight picture, which forces me to shift my thumb to about 11 o’clock — along with my pressure switch.
I love this video because it’s explained really well.