Hey big question to any Carbine owners..... what are you running? Got ahold of Magpul'S Art of the Tactical Carbine and has peak my interest in them. I've handled rifles (hunting) and hand guns and have done some basic research into the AR style gun. but want to know more before i make a purchase.. any advice? DI vs Piston is something i somewhat grasp but haven't really decided on. wondering if it's like the chev vs ford argument... more matter of opinion. Any thoughts? also if you want pics of your setup is always welcome!