My questions revolve around compatibility between the two systems (epoch and evo ). In regards to the evo barrels I am talking about the ones with liners not the solid bull barrels. I think I remember seeing in a video that in order for the evo barrels to fit in an epoch the locking lug mechanism would have to be changed on the epoch ?? What about the standard evo barrel liners, will they just drop into the epoch shrouds and work ? Will complete epoch barrel systems slide into the evo and work ? Or would you have to put the epoch liners into the evo shrouds to make it work ? Thanks.