I have several NEW AR15 barrels left over from some builds I did. These are spun from chrome moly Black Hole blanks, they are in my own light weight contour that I have my manufacturer do for me. I tried several contours and settled on this one for a light weight profile but keeping the weight in the right places. At the chamber and gas block seat. Priced to move!!!! 130.00 shipped. PayPal plus fee or as friends/family. Barrels I have left. These are all chrome moly standard rifling. These are NOT polygonal barrels. 5.56 Wylde chamber, 1-7 twist, .750 gas block seat, M4 ramped extension, black shot peened finish. All are threaded 1/2-28 at the muzzle. One (1) 13.7" mid-length gas ( 1lb 8oz each). Three(3) 16" rifle length gas .110 gas port ( 1lb 11.2oz each). The 16" mid-length pictured has been sold.