The Volquartsen Lightweight Carbon Fiber Barrel with Open Sights sets the standard for a lightweight barrel - bull barrel match accuracy at half the weight! A stainless steel barrel fitted with a woven carbon fiber tube creates an air space between the barrel and sleeve, helping the barrel stay cool under rapid-fire conditions. The rigidity of the carbon fiber tube allows Volquartsen to put the barrel in tension, minimizing barrel vibrations typically found on smaller barrel diameters.The Lightweight Barrel with Open Sights features an XS Ghost Ring Rear (ID .191") with a Williams Gun Sights fiber optic front sight (.060" diameter available in red or green).