Falcon have sent over details of their latest new product:
KJ KC-02 Extension Kit outer tube From TAIWAN FALCON
Features: increase barrel length, increase stability and improve the impact ballistic intensity
Internal objects: a longer outer tube & 509mm Precision tube & KC-02 dedicated Hop Up rubber
Application gun type: KJ KC-02
Welcome to purchase! ~ contact Website: http://www.falcon-tw.com.tw/index.asp
(Falcon)