An elderly freind of mine had me come over and look at this 1911 for he. Her husband bought it in the 70's and shot it in a few pistol matches and then put it away. She said I can probably buy it form her in a couple of months(she is going to check with her children to see if it's okay). It is in outstanding shape except for the after market barrel lock(nut?) and the sights have been changed. The rear sight should be easy enough to replace as far as not damaging the pistol but I'm not sure how the front is attached except for the fact that the end of the slide has been heated enough to damage the finish. Is the original slot still under the new sight or is it too hard to tell without removing it? Can it even be removed without causing further damage? I also would like to know how much this pistol is de-valued because of this. It's kind of a shame because the pistol is so nice.