The beaver tail grip safety on your Colt looks aftermarket. I suspect that a past owner wanted a higher hold on the gun. The rest looks pretty stock but I question the three dot sights. I'm not sure that Colt was using three dot sights in 1965. You could replace the grip safety and sights if not period correct with a parts order to colt. easy change out of the grip safety. When it's disassembled, you can look on the inside of the slide to see if the front sight is staked, but by what I see in the photo I believe that it is. You'll like both the beavertail grip safety and the three dot sights better than the parts that came on the gun. If it was mine I would leave the grip safety alone and get some tritium and or fiber optic sights for it.
If you'd like to see what better sights are like on the 1911 commander or if you like them, pm me. I'm right next store.