I think this one is more inline w/the concerns of today…
Suggestive imagery of children..
http://4.bp.blogspot.com/-0MpRI40JOGI/U8JoFx1DIsI/AAAAAAAAFxc/O5hVkRtPLlg/s1600/43.jpg
Nasty, spoiler that shit…
The barrels are preloaded forward in the stock via two huge springs.
When you fire, this allows the entire assembly to absorb much of the shock as long as you have the correct muzzle brake.
Grabcad has a cool 3D model someone did up, you can look at every detail to your hearts content.