I just received a set of truglo tfx pro sights from cabellas that they list for a Glock 32. (What I got them for). Truglo shows they do not fit a Glock 32. They sent the one that starts with a Glock 17, truglo lists the 32 on the sight just below that one. A 19 is listed on the sight that fits a 17. I was thinking a 19 & a 32 would be the same slide other than the diameter of the hole for the barrel. Does anyone know the difference? Also truglo doesn't list generations of glocks, my 32 is a gen 3 if that makes a difference.