0
.300 AAC Blackout barrel made by ATI. 16" with a melonite finish. Has only had 34 rounds through it. Fits into any mil-spec upper receiver and uses the same BCG and magazines as a standard 5.56/.223 rifle. Factory dimple for standard .750 gas block. Paid $225 new, asking $175. Also have 90 rounds of Mast Tech 147gr ammo and 16 rounds of Remington Premier Match 125gr. $120 when bought at Powderhorn, asking $75. $225 for both the barrel and the ammo if you take them together.
Located in the Burlington VT area.
Can ship if you want to pay for it.