Deadlywind Fibur-X Autococker Carbon Fiber Paintball Barrel w/ Boremaster Kit - 16 Inch The Deadlywind Fibur-X carbon fiber barrels are ultra-lightweight, accurate, and quiet. They utilize the Freak replaceable inserts, so one barrel and a few inserts will do the job of multiple barrels. And with the ability to affordably swap to different threads, the Fibur-X has you covered! The Fibur-X barrel system consists of three parts - The thread adapter to match your gun type, a carbon fiber "main-barrel" which is the main part of the barrel (sets the length), and a Freak insert which sets the bore of the barrel. Weighing in at an average 64 grams (77 grams with insert), the Fibur-X is 2x to 4x lighter than other replaceable insert barrels. And it it is strong enough to be driven over with a car. (Deadlywind already tried this for you, so you don"t have to!) Unlike other carbon fiber barrels, the Fibur-X 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. CNC align-bored segment for the insert area, CNC-ported with 3 rows of straight ports, and then hand-assembled and quality checked - You can"t get any more accurate. The included Smart Parts Boremaster Kit makes it so you will always have the right bore size for your paint. Correctly boring your barrel before a game of paintball can increase your markers air efficiency and accuracy. Note - You MUST use a Smart Parts, GoG, Luxe, or Empire "Freak" insert with this barrel. You must have at least a "Thread Adapter", a "Main Barrel", and a "Freak insert" to use this barrel system. Features: Smart Parts Freak Boremaster Kit Includes: .684 insert .687 insert .689 insert .691 insert .693 insert .695 insert Carrying case