The factory S&W night sights on the M&P are made by Trijicon. High quality sights. Trijicon and Meprolight are the only night sights I would consider. Bill
I sell and install Truglow TFO's on M&P's and have found them to be of same quality & brightness as Trijicons. ( which I also sell & install ) Truglow uses the same swiss made tritium gas as trijicon & meprolite does. Personally, why get just night sights, when you can get day & night sights with the TFO's.
Is there a smith that will install sights on the M & P slide?