I know it seems like either a too simple or too complicated question, but I wonder how FALs compare to other rifles. I'm thinking particularly about the gas system and bolt locking mechanism. Like with my friend's AR-180, the bolt carrier is on twin springed rods. The gas piston pushes on the carrier to cycle it. The bolt rotates and locks into the barrel. On my SKS, the piston pushes on the bolt carrier as well, but the bolt locks by the back end locking down into the receiver. My friend's AK has a rotating bolt, but the piston is attached to the bolt carrier, unlike the others that just push on it. So how does the FAL do it?