Carbon Express TCX Nock Green .203 12 pk.. An overly tight or loose fitting nock can negatively impact arrow flight and accuracy. Top shooters know that nocks are an important component of consistent accurate arrow flight. This insight led Carbon Express engineers to develop the patent-pending Launchpad precision nock. In the middle of a hunt or at a competition I know that I can pull one Launchpad nock after another out of its pack and it will consistently improve my results affirms Dave Cousins avid hunter and 32-time national champion and 10-time world compound bow champion. Our premium Carbon Express arrows feature Launchpad precision nocks. If your customers are shooting another brand of arrow have them replace their nocks with Launchpad and they too will Shoot Better. Aligned. Precise. Accurate. Specifications for Carbon Express TCX Nock: Manufacturer: Carbon Express Inner Diameter: 0.203 in Quantity: 12 Features of Carbon Express TCX Nock Precise contact points for controlled arrow release. Concentric design to center the nock in the arrow shaft for more consistent performance. Aligned nock barrel for true arrow flight. The new Launchpad Nock delivers precision engineering and perfect balance that ensures superior accuracy for truest flights. Strength and Durability All Carbon Express nocks are made of polycarbonate for strength and durability. Available in 4 sizes: .166 .203 .234 .244 12 per pack Package Contents: Carbon Express TCX Nock Carbon Express 50259: TCX Nock Green .203 12 pk.