go to a gun store and handle and try all the models to see which one feels the best to you. this also lets you see the prices, and maybe new or used depending on make and price. Everyone has an opinion make sure your is yhe one that counts.
Ok, so in looking around and trying things he's figured out he has short fingers so reach has become an issue, and he's discovered 1911's fit but doesn't like the single action
...and he's discovered 1911's fit but doesn't like the single action