I will need to replace the sights on the gun, as my vision is not the greatest and I have tried fiber optic and Trueglo TFX on other guns with no good help. The Big Dot works fpr me. I have done sight installs before, but I have seen some videos where people say the sights on this gun can be hard to remove and some broke sights installing or removiong. Would it be worth just going to a gunsmithj for them to do it. I have the tools needed here. Opinions?