I bought this gun from a fellow forum member. The gun was as advertised and in great shape. However, I didn't pay attention to the barrel length. It's a 12 in. w/the factory extention (one piece of course), but I need a 16 inch. I'm willing to sell it for what I paid for it, $625.00. I fired it this morning with a mag of reload and a mag of factory S&B 5.56 and it was flawless. I've cleaned and lubed it, now it can be yours. Comes w/box, sling, lock, book, Truglo red dot, lazer and three 30 rd. mags. (1 bushy and 2 LEO). As you can see by the pics, it's a flat top w/carry handle. More pics on request. Thank you.