I did mine myself. You just need a vice, towel, can of wd40, small hammer, brass punch, and a couple of wood blocks. A friend to help stablize things when the tapping starts may help. If looking down the slide from the rear, the sights come out from right to left. Spray the stock sights with wd40 and let them soak for a while. Wrap the slide in a towel and secure it in the vice with the left side of the slide facing down. Put the wood blocks under the side you are tapping in order to prevent the slide from walking out of the vice. Place the punch on the right side of the sight being removed and begin tapping. You will need to give it some pretty good taps but nothing too overkill. Eventually you will see the sight begin to move out. Mine took about 30mins, including the installation of my tfo's. Hope I could be some help.