I can not answer that because I don't know the exact size of a sight pin on your gun - sorry I only have front sights that are integral with the barrel on mine, hence no pins.
A descent set of punches are not all that expensive, and you will have them forever after the initial purchase, so that is what I would do. When I work on a gun I grab my block of punches and use whatever size fits the best. I truly go by fit and usually do not even look at the size of the punch.
Also might want to pick up a bench block which is an aid in driving out pins in general and a proper sized ball peen hammer is useful too. Again, once purchased you will always have them on hand for your next project and if you are going to work on guns, these are essential tools.
Chief38