I found that, with my eyes, the Trijicon sights that came with my S&W 1911 were much easier for me to use than the factory white dots that were on my M&P9FS. So I ordered a set of Trijicon HD Night Sights (SA137Y), and had them installed.

Taking a photo of the new sights turned out to be tricky, at least for me. I rested the M&P9 on a stand and snapped a bunch, but no single photo seemed to tell the whole story. The base photo (#3) isn't terrible, but it shows the rear sight dots larger and the front smaller than actual. After screwing unsuccessfully with Photoshop for a while, I decided to make the following composite view instead:



Image #1 shows the rear sight quite well . . . but the green vials are washed to white and the front sight's blurry and actual size and impact is reduced. Image #2 shows the front sight detail pretty well . . . except the outer ring is actually yellow. NOTE: All 3 green vials/dots are the same size.

The overall effect worked very well for me this afternoon at the (indoor) range. The front sight literally jumps out at you in any light. The dots on the rear sight are virtually pinpoints, so they are visible for alignment but don't make the sight picture busy. It was much easier for me to align the three pinpoints while main focus was on the front sight than with the factory white dots. On these sights and with my eyes, aligning the 3 vials also aligns the tops of all three posts. That wasn't quite the case for me with the factory dots . . . on those I had to align the tops (not the centers) of the white dots to get the posts correct.

IOW, the yellow dot captures your attention while the green dots can easily be aligned. I like them a lot

As light fails, the yellow front outer circle fades to invisible while the green dots become more and more prominent. I found the sights were very visible in any light I tried, all the way down to "too dark to shoot" lol.

Some notes:

The Trijicon sights on my 1911 are different; all three have white outer circles and they are all the same size. For me that is inferior to the ones in the photo on my M&P9.

For anyone with old eyes who is badly near-sighted with cataracts and wearing progressive bifocals . . . standard white-dot sights may well be out of focus, multiple imaged, sparkly from glare, and distorted out of round for you like they are for me The same problems exist with the Trijicon sights, BUT the effects are far less of an issue for me. This is probably true because the glary dot is yellow and only on the front sight, and is NOT the focus for post alignment. Also, the green vials don't glare much if at all, and are very small so any distortion is almost invisible.

I bought an MP40 with the Novak Tritium Sights a few weeks back....I didnt think they would be very bright but I can see em from 20 feet across the room easily and define each point LOL!....Much brighter and I'd turn em around and forget about a flashlight!

Here's my rig..

S&W M&P40 40S&W 4 1/4 Night Sights NMS TS for Sale at Buds Gun Shop $455.00

Ernie

And they fit the M&P Shield ..

I prefer the lime green/yellow fronts as well. Very easy to pick up. Looks good.

I kind of like the Trijicon HD's with the Orange front. Maybe it's me but I can pick it up easier when aiming my 9mm Shield.

I found a similar effect. With the Trijicon HD's, aligning the centers of all 3 vials caused me to hit the target low.