I want a gun for home defense. I'm still on the fence between a glock 17/19 or a 1911. I found a great 1911 at my local gun store for $520. It's a para GI expert. Problem is I want a light for it. If I am going to be investigating the house at night I will need a light. One of the most important things in self defense in target identification. The glock has a gazillion accessories that fit. What are my options for lighting on a 1911? Is a rail simply out of the question at this price range? If I don't get a tac-light is that Harries technique worth practicing with a 1911? Sorry, lots of questions but I have lots to consider.