RA-Tech Stainless Steel 6.01mm Inner Barrel for KJW KC-02 Series Airsoft GBB Rifles

"The KJW KC-02 is a pretty amazing GBB on its own, but this barrel perfects the gun. The FPS doesn't change much, but the overall range and accuracy are significantly increased. The only problem I found was that the barrel sticks out a little, but a mock suppressor fixes that. Overall a great barrel, especially when mixed with a CO2 mag.

"I have the version 2 of the KC-02 and I don't know if the version 1 has a longer outer barrel, but on my gun this inner barrel sticks out of the outer barrel about 15mm. Its a bit disappointing, but other than that its much better than the stock barrel.