My eyes have gotten so bad that I can no longer see the sights of my pistols as a single object. Double vision with both eyes open. Dr. says use glasses for close up but I don't need them for distance. Pain in the A**! I have no trouble seeing a red dot on a target at 7-35 feet away. So I am outfitting ALL my pistols with red or green dots. It's a slow (read expensive) process. My question is about a Colt MK IV Govt. .380 that I carry sometimes. It's an uncommon enough gun that there's not a lot of aftermarket for it. Since I carry it I can't use a top mounted device. Any suggestions?