Check the listing for details. Deadlywind Fibur-X Fibur-X8 CF Paintball Barrel Thread Adapter A5 X7 Phenom. Condition: New. Listed at 18.95 USD. Deadlywind Fibur-X Barrel Thread Adapter A-5/X7 Threaded 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. This is for just the Fibur-X threaded adapter by itself. Also called a "Back". Must be used with a Fibur-X Main-Barrel. Adapter Requires both a Fibur-X main barrel and a Freak Insert for use! Being sold by reputable paintball dealer (PB Sports) Payment may be made by PayPal, MasterCard, Visa, Discover, or American Express. If you want to pay with credit card outside of Paypal, select credit card at checkout, then call us to arrange payment. FREE Standard Shipping! Upgrade to USPS Priority Mail for only $3.00 more! $9.95 for UPS Ground in 48 states. We Do Not Ship Outside the United States, sorry.