I still need to get a set of sights for my G17. I think I am going to go with a set like the ashley express sights. Shallow V rear sight and a bead up front.
I put those sights on the wifes G19 and my H&K 45C, both the big dot, and have been pleased.
JYD 139 "Timid men prefer the calm of despotism to the tempestuous sea of liberty",Thomas Jefferson