I believe the S&T ones are OEM'd by Ares, if yu peal the model id sticker off on the right hand side it may have the actual HK Trades underneath. I used to have the Ares G36K in tan, years ago I had the G36. The feel of them is ace.never had a problem with the internals but didn't use em much, preferred 416. The EBB was surpassingly fun but no where near the fun level of recoil guns of GBB's. BAck in the day loads of sites used the Dboys G36C as rentals, they where very tough and lasted for ages. The KWA one also had a good reputation, more in the US iirc. KWA are bringing it back I believe so it could be worth a look. But if you want the best G36 ( well second best obviously ), forget WE/AA get the VFC GBBr.