Been thinking about my next purchase. I am interested in military weapons, seems I enjoy shooting them more than I enjoy my hunting rifles. Anyways,I have a Beretta M9, great purchase, I've shot thousands of rounds without any malfunctions or problems. An M1Garand, again one of the sweetest rifles that I have shot. And now looking for a 1911. At the gun shop I came across a Springfield "Range Officer", liked it alot but cant make up my mind about that model or the G.I. model. I think my problem in making this decision is the sights, the R.O. are adjustable and the G.I. are fixed. I am looking for input to help make my decision and any other comparisons would be greatly appreciated.