Whilst KWA and KRISS Arms sort out their licensing issues, it's again business as usual for third party parts makers wanting to provide upgrade parts for the KWA KRISS Vector GBB. One of them is RA-Tech which just released their new recoil buffer which is heavier and provides a harder kick for the GBB. If you like what you see in the video below, you can just go to Airsoft Taiwan to find this product.