Looking to pickup my first AR. Any suggestions on manufacturers? I will be getting a slide fire stock and the accessories down the road. I want to make sure that I get a quality rifle but not trying to drop 1500 on it as I am just getting into the sport. No competition or hunting it will be just something to play with since I need a new hobby. I am a complete newbie to ARs (other than my time in the marines) so any advice would be greatly appreciated.