Hay all I hope this has not been covered in the past. I just got my first 1911, 45 ACP and I love it. It is a Colt MK IV 80 commander. I want to use it as a duty gun for work but I will need to put better sights on it. I want to put night sighs on it. I have done some research and have a general idea on what is out there and how to remove and put new sights on the gun. The question I have is, has anyone done this to there commander and if so does it create problems with the point on aim point of impact. The gun has to be accurate for use at work. Any suggestions on this one?