The Empire Nightstick Carbon Fiber Barrel. The new Empire barrels are made using state of the art technology and have a very clean and polished finish. For the price, the Empire Nightstick barrel will be taking the paintball market by storm. The light weight design makes it ideal for any tournament, scenario or recreational player. The Nightstick comes in a 0.692 inner diameter which will work with most types of paintballs on the market.