Hey there G3! I think the bolt and carrier would take the jolt OK, there are medium heavy and heavy FAL barrels available that give enough meat to bore (I would'nt bore a skinny barrel - like an L1A1). The one area that may take some tuning would be the gas system. The gas port may have to be opened up a bit to take some of the pressure off of the bolt. Remember these sticks are gas operated as opposed to the inertia blow back like your baby has.
Max
Max
