Advanced Barrel System thermal carbon-fiber wrapped 16" stainless Mike Rock lw barrel with mid-Advanced Barrel System thermal carbon-fiber wrapped 16" stainless Mike Rock lw barrel with mid-length gas, 1/7 twist,

Wylde chamber (chambers both 556 and 223) with Nickel-Silicon Carbide lining of chamber and bore which slicker and harder than chrome-lining.

Barrel is lightweight, but a HB contour in diameter thickness.

Thermal carbon-fiber wrapped barrel for fast heat dissipation and barrel cooling, warm to touch in ~ 5-6 min. on 100rd mag dumps.

New ABS barrel alone cost over $900 now with at least 3 to 5-mth backlog. ABS is now part of Proof Research.