Piece of cake to do it. Granted, a sight vise is nice, but you can do it with a nylon punch too.
You'll need a 3/16th thin wall socket for the new front sight, and if you're using factory sights on it now, you have two options for front sight removal. If you don't care about saving it you can put a small punch on the bottom and tap it out. Alternately, you can remove the tiny plastic stake with tweezers and it'll drop out (practically).
I've done 10 sets or so for myself and for others. No buggers and no complaints. Well--the one set of XS sights that I did (under protest) are coming back off and the shooter is going to Warren Tacticals. Just too hard to shoot accurately with that softball on the front!
Dan