I've done those before, all you need to do is make sure the ramp is supported, can be tricky, but it works. Getting the dovetail sight insert out is harder than pressing one in, to install one, I use my dremel vise, works like a charm once it gets started. I looked all over for an inexpensive or home made sight pusher, never found one, so I just used a little yankee enginuity, it works and has worked for many. Some of the reviews on the inexpensive sight pushers I found weren't very encouraging, either. :cry: