Algodoo

I'm just sayin' RGS because "roller gas system" wouldn't fit in the title for sure.
This is awesome
It's simply a bullpup design without a skin, similar to my other model. This one is faster, and has a lot more muzzle velocity.
Operate like any open-bolt Algogun (turn safe off, select fire mode, fire with F/dragging) but don't be afraid of breaking the trigger, especially on semi auto! Drag it all the way or it won't work very well.

Rate and comment please! I'm not in the mood to make anything more elaborate (besides the skin, which I will possibly make even if I'm horrible making one from zero) but this is better than nothing, isn't it?