WE tech is a Taiwanese company that produces a wide variety of AEG and GBB platforms. For their AEG products, they have created their “Katana” line, using a split gearbox design that is similar to the ICS and Systema profile, offering a quick-change design that can be quickly swapped for different power settings for different air cylinders. Their GBB line uses their own and some copied designs, as their pistols are based off of most Tokyo Marui lines as most, if not all parts are cross compatible, WE create their Glock, 1911 and M&P lines which all lack trades due to lack of licensing. This crosses over to their rifles as they currently haven’t obtained the legal right to bare trades on their products. Their GBBR mechanics are somewhat proprietary, as they offer a different system than the KWA and WA systems are using.