ADE Advanced Optics RD3-009 5 MOA Red Dot Sight with Mounting Plate for Smith & Wesson MP M&P, M&P 2.0, SD9VE, SD40VE Pistols + Additional Standard Picatinny Mount

I have been wanting to try a Red Dot Reflex Sight on one of my M&P pistols without having to take it in to have the slide machined and have it a permanent install if I ended up not liking it. Well this is EXACTLY what I have been looking for and it was very easy to install, adjust and start shooting better with. After a 30 minute install I took the pistol down to my Gun Range and sighted in the variable density Red Dot at 25 yards. I then took it off the rest and shot another 50 rounds at 25 yards and was amazed how well I could keep the shots inside a 4" circle. A purchase well worth every penny. I have since put about 500 rounds through the pistol and it's still holding a great zero.

This product with it's additional mount makes installing this a breeze! I put it on a Sd9ve. I know some say it doesn't fit, but it does. The mount is loose untill you tighten the screws down (use the longer screws both F1, F2 mounts and Blue loctite). I havent gotten a chance to use it yet, but I'm excited! Wish there was a way to use iron sights with it, but I don't believe you can have both on a slide. The dot is bright and adjustable in brightness. Screw that lock the windage and elevation.

UPDATE 02APR22 - I ended up having to use a UTG adapter plate to mount this to an M&P Shield. The mount worked great, the sight not so much. - I taught a combat pistol fundamentals class over the weekend and decided to test this sight. Things didn't go well. The dot, even at its brightest isn't bright enough during the day. I was in the California desert and as soon as there was full sunlight the dot was washed out. I ended up switching to a G19 with a Holosun in order to keep the class going. - At the conclusion of class I decided to move into a shaded area and give the sight another try. I found that it shut off frequently. Sometimes after a single shot, sometimes after 2 or 3. The sight was mounted with the rubber shock isolation pad and without. The pad didn't seem to make a difference. I WANTED to like this RDS, but sadly it's just not up to par with a reputable brand. First off, having shot iron sights all my life, I bought this to experiment with a pistol optic. It looks good out of the box, but thats about it... There are zero mounting instructions. First, Replacing the rear sight with the threaded dovetail mount is impossible out of the box. The dovetail mount is made of anodized aluminum and is overly tight. It has to be filed to fit. The sight adapter base isn't cut for an exact fit to the slide. To the contrary it seems to have some universal radius cut into the underside. Once the sight is attached and bolted down, the adapter base tilts back to the point that you can't adjust the elevation on the sight low enough to match point of aim with point of impact. On the M&P shield as well as the M&P9, The slide just behind the rear sight dovetail is slightly lower than the rest of the slide. They're not even all the way across like a Glock. The adapter plate isn't made taking this into account, causing this upward cant. There's a rubber damper included thats supposed to be placed between the sight and mount plate. I tried the sight with and without the damper and I still couldn't get the thing sighted in. The screws are dead soft and I could feel the heads starting to strip as I tightened them. The sight itself seems to be OK. It might even work if mounted directly to the slide. But using the adapter, it's completely useless. Sadly I think filing the dovetail adapter has voided all hope of being able to return. So now I guess I'm stuck with it. Maybe I'll mill the slide it accept the sight by itself and see how it works out. Also, don't be fooled by the American flag on the side of the optic. It's manufactured in the People's Republic of China. So, it's no surprise it doesn't fit right.

It’s definitely cheap. But it seems to work good

Very satisfying.

Overall, the sight’s appearance is great. It mounts onto the gun cleanly and looks practical. However, the red dot is almost useless in bright outdoor light. If I had to rely on the red dot being visible before I was shot, I’d probably already be dead. If you’re planning to keep this on a nightstand gun, I think it’s a great option for the price. But for daily carry, absolutely not.

Good quality for the price

Should've listed it wouldn't work for a 10mm. Otherwise exactly as advertised, will work for almost any rifle or shotgun, even airsoft. But if you're buying for pistols just know its only rated up to 45cal which is 8ftlbs i think, 10mm is 14ft.lbs