I saw this gun before it was announced to the public and was able to handle both the gun in a prototype stage as well as the locks. I saw a later version at the Vintagers shoot where there was a gun that could be handled as well as the lock set.
The locks are as far as I can tell a direct copy of the SO4 lock, perhaps with some slight change but none that I could tell. This is what Lou also indicated - but refers to the SO6 because of their very nice hand detachable feature which the SO4 does not have. I do have an SO4 and have had the locks off recently enough that I think it is a fair comparison. The locking mechanism is not the SO4 cross bolt but is based on the cone projections of the Beretta 680 series.
It is built at CSMC and that is the reason that they are stopping the RBL production at the end of the year, if not sooner.
I do think it is a nice gun but I still do not care for the laser engraving. It does handle well, at least in the show room. However, it is not a SO4, SO5, SO6 or SO9 but then neither is the price.
Thanks
Z