An interesting post on the Hephaestus HTs-14 Gas Blowback Bullpup Rifle was posted by TAF Custom at Arms-Cool forums. The HTs-14 which is developed in cooperation with GHK Airsoft, is a the airsoft version of the OTs-14 "Storm" Groza which TAF Custom mentions in the origins of the rifle. From the origins and uses of the rifle, TAF Custom then discusses about the ful details of the HTs-14 GBB from external details to operation.

You can read the full post at Arms-Cool (Chinese Language).