I have one just like that chambered in .38 Super and also one that's chambered in 9MM, as well as two in .45ACP. I've wanted to replace the sights on these beautiful pistols for quite some time, as they are the smallest sights that I own on any handguns. Can anyone direct me to a company which makes decent sights to fit the Colt dovetail that can also be seen by my aging eyes? I find it hard to pick up black on black sights such as those found on my 70 Series Gold Cup. I find that 3-dot sights of one form or another are easier to see. Anyone have good recommendations?