Says for shield models... kinda.. - AmeriGlo Smith Wesson Night Sight Sets, Green, M&P Shield

Rear sight is bigger than the factory shield sight and will hang over the back of the slide a little bit. The rear sight, the tritium crystal isn't even centered under the opening correctly. Buy a better brand. Not recommended. I don't need that rear sight snagging things coming out of holster. Sucks i had to spend all that money only to get a front sight. Fortunately the front is the exact same height and width as the factory one. Personally i don't like the lighted rear anyway, draws your eyes off the target at night. Another issue with this on a shield model is the distance between the sights. The aperture on the rear is too wide for the shorter distance and there's a lot of fudge room, combine that with the dot not being centered and you'll have a hard time hitting your mark. Junk.