Title really says it all. This is a brand new, (listed as used because its out of the bag) un-fired barrel. It has never been mounted. I bought two and have no desire for another M4gery type of ar. The tube in the bore is a cardboard shipping tube. You will not be disappointed and it is short barrel unless you attach a muzzle device per BATF rules. I will let the pictures do the rest of the talking. No trades and the price is firm. USPS MO or paypal with no fee. Please e-mail to conduct business. First e-mail takes it., thanks for looking.