ohhuntRD U1 3 MOA Red Dot Sight for RMSc Footprint and Picatinny Mount 1X21X15mm Micro Shake Awake Red Reflex Sight 10 Brightness Levels

Very nice , fits my shield plus perfect. Hasn’t lost zero after 100 rounds. Works as described.

The motion sensor is pretty sensitive, so if it's on your edc expect the battery to last about 4-6 months. Don't be an idiot like me and use red locktite to screw it down since the battery is under the unit. I had already put it through a beating before a battery change and held it's zero, and definitely took A LOT of beating getting the bolts out. But I bought another one to replace the one I basically destroyed because of my mistake. So buying it again should say quite a bit. If they manages to do a side slot for the battery I'd definitely give it 5 stars.

Mounted up just fine on a Hellcat Pro OSP....not sure why another review stated it won't.Solid sight. Holds zero after hundreds of rounds. It's worth the $80-90 they ask for it. I did return the first one I was sent because the glue around the glass didn't look proper - the replacement unit is glued properly. I am pleased with the unit and would purchase again.

The product looks like it is a good product, but it does not fit the RMSc footprint milled into my slide. I will try and us it on another pistol

In terms of width, there is a hair of overhang on the slide, but almost none, it is significantly narrower than the grip. And the battery, light, electronics housing is just a bit shorter than standard P365 sights so you just see a bit of your front sight on the bottom with the dot centered on the target. It is also nice that the housing is aluminum and has a bit of grip that is a reasonable match to the standard P365 slide.The rubber cover does need a bit of trimming with a scissors, but it is handy for when you are cleaning things. I can see why they oversize the thing since this sight is going on a variety of guns and they probably want a one size fits all deal. Mine dot also needed no adjustment, it was right on target from the factory.I did have to pick up a couple of 10mm M3 hex screws to mount it since the included ones were a bit short for my liking.

So far so good, it keeps a zero, comes on when moved, everything I had hoped for, keeping in mind that I only use this on a range gun. Huge value for the price.

I like the optic size and ease of installation. However, the problem with the performance is that when you fire rapidly the optic dims out and it takes a second or two to get back to the brightness setting that you had it set to. I'm around the 600 round mark on a 2011 9mm. So the recoil shouldn't be an issue.September- Used warranty to get another unit and it's better. No dimming at all so far, I'm at the 1000 round mark with it.Great Service from the manufacturer

I installed this on my G43x MOS. The sight fits like a glove, and it is slim enough that I can still use my OEM iron sight. Shake awake works like a wonder and the glass is big enough for a nice sight picture, but small enough to be 100% concealable.