There have been 1 or two used G-20's up for sale in my area. I'm wondering what I should look for when examining a g-20. I can't ever recall anyone haveing a major problem with their glock. Most feed issues seem to just be an old mag spring or something like that. Should I be worried about getting a lemon? I am a little hesitant to buy a self defense gun used. But I guess if I put a thousand rounds down the pipe and make sure the springs are all new and it doesn't jam during that test it should be ok. whats a good price? I could get one out the door new for about 600. Plus dros.