Our new straight-bore carbon fiber barrel. The best value in barrels that money can buy! The Deadlywind Null carbon fiber barrels are ultra-lightweight, accurate, and quiet. They are a straight-bore design with a 0.688" inside bore. Weighing in at an average 50 grams for a 14" (45 grams for a 12"), the Null is not only the lightest barrel ever, but is also strong enough to be driven over with a car (Yes, we have done it-- and filmed it do that you don"t have to try it!) Unlike other carbon fiber barrels, the Null barrel is built with a unique 3 layer construction. 2x2 satin Twill external, uni-direction fibers laid up in a strong multi-vector pattern, and then a super-slick "Silkfiber" inside that can be safely swabbed. Every component of the Null is 100% USA made, including our proprietary CNC-porting and assembly process. Every barrel is even hand-checked for QC-- You can"t get any more accurate. This barrel is ready to use as-is. No inserts required!