Hephaestus Airsoft uploaded a video of their Hephaestus Custom Project T, or the Limited Edition TAR21 Gas Blowback Bullpup Rifle. The first video is a short presentation on the operations such as loading and making ready, featues and hop-up adjustment. The seconed one  the disassembly and assembly of the Bolt Carrioer Group. This custom GBB is now available at airsoft retailers in Hong Kong.