I came into some money recently and I was hoping to acquire a semi-auto rifle of the 5.56/.223 variety. I'm not particular to pattern of rifle and I already own a .22 and a Mauser. I wouldn't say no to something in .308 or 7.62x39 but 5.56/.223 is a bonus. Also, I'd like to stay under $500 if I can, with a max of $600. If it makes any difference I'm going to be looking the the Jamil Temple gun show in SC next weekend. Thanks for any help.