JBU Airsoft GBB Pistol 5.9″ FPS Increaser Kit

JBU Airsoft GBB Pistol 5.9″ FPS Increaser Kit

Includes 6 inch barrel extension, inner barrel and pistol barrel adapter.  Needs JBU upgraded tight bore inner barrels, SDJA69-SDJA72. FPS: 30+ w/ 0.20g  Material: High Grade Aluminum    Dimension: 5.9in Length x 7/8in Diameter  Finish:  Matte Black    Fits: WE, TSD, Caspian, TM