The Madbull 2 inch Outer Barrel Extension 14mm CCW.  Steel metal construction with 14mm threads that goes right onto your airsoft gun existing barrel's threads (inner threaded).  Outer threaded to attach flashhiders 14mm ccw as well.  Measures 2.5" long, but only adds 2 inches after threaded on your gun.  A little over 5/8 inch outer wide diameter.

This is perfect for custom guns that have a tightbore inner barrel installed, but it's sticking out the end just a little too much.  Use this attachment piece to extend your outer barrel and cover up that inner one.  Quality made from Madbull airsoft.