Colt M1991A1 .45 cal. automatic pistol.  Serial #2793497.  Excellent condition.  5” barrel has excellent bore. Fixed military sights.  Slide and frame have 99% matte blue finish with few tiny rub marks.  Colt checkered walnut grips are excellent.  In maker’s hard case with two magazines, instruction manual, one set of smooth rosewood grips, one set of Pachmayr checkered rubber grips.  Cannot have been fired much.