Airsoft Taiwan sends in a link to a video showing the new RA-Tech Custom KWA AR10 Gas Blowback Rifle. This has the ESD KSC/KWA EVO II HOP UP SET that is comprised of the ESD EVO II Stainless hop-up housing and the ESD Hop Up Tensioner Set. Also installed is the Maple Leaf 440mm 6.03 Precision Inner Barrel and the RA-TECH NPAS KIT which you can adjust the power of the GBB rifle.