sorry for late post bit late to the thread but my one most definently was a double bell scar L ( i the 5.56 round mag version) arrived with a broken folding stock couldn't RMA it as none in stock on website i got it from but seen one on a different website so ordered that fit it to gun litterly 2 screws each side of stock so no touching inners then finally when all together took to game day fired one mag thro it was good surprising range and then thats ware it all stoped working as a changed to my second mag went to fire and gearbox started screeching opened up when back home to find out it had snapped the teeth on gearbox NEVER AGEN WILL I ORDER A DUBBLE BELL