The stock easily folds to one side, and unlike the American AR-15 design the gun can be easily and reliably fired with the stock folded.
At the rear of the gun, there’s a mounting location for a sling swivel or eyelet.
Seems like a good way to get it dirty real fast, and cleaning a spring isn’t exactly as quick as cleaning the piston on an AK-47.
The operating rod and bolt carrier are connected using the charging handle, and one of the nice side benefits of that configuration is that the gun allows the end user to swap the side of the gun that the charging handle is on with ease.
Along with that rail, the fixed (yet flippy) iron sights of the 556 Classic have been replaced with Picatinny mounted flip-up iron sights.