The Chinese company 5KU is a manufacturer of high quality products made using CNC machining centers. It has been known for years, among other things, from the production of successful AK carbine accessories "modeled" after ZenitCo products. Its quite coincidental that we have been publishing quite a lot of information about Zenit accessories replicas lately. Apart from TWI, LCT it is also trying to enter this market. Perhaps that is why 5KU has also recently resurfaced online. Not so long ago they showed the PT-1 stocks and various versions of tactical handguard and gas tube cover sets, including the relatively fresh B-30U Classic.