You should go and kiss the hands of the Friend who said this is a .22lr version....
at first, I have handled this gun at the local shop, almost every store has it ...... second, look at the ejection port, from what angle that looks like a port to churn out a 5.56 or .223rem spent cartridge .....
thing about local gun smiths is that they are really good at finish, accuracy & all, however with guns there is more to this.....the main point where we lack is the Metallurgy, the material used....how well it is heat treated etc....that is where we get the hit right in the groin.....