I had a full size RIA 1911 GI model and shot it quite a bit, carried it some. I never could get really good results with the GI sights. A buddy of mine wanted it far more than I did so I sold it to him. Wish I had kept it now. I could have just changed out the sights and been happy with it. The only 45 I currently have is a Glock 36. Much smaller and lighter than the 1911, but the 1911 carries fine with a good belt and holster.