Looks like a three part series covering their Masada, The folding SMG, and their PDW:
[youtube]http://www.youtube.com/watch?v=eoa-rJkHReM[/youtube]
[youtube]http://www.youtube.com/watch?v=D99NHb6B03s[/youtube]
[youtube]http://www.youtube.com/watch?v=8oLcHkCcz_c[/youtube]
Neat
On PDWs: I remember seeing some WWII sub-machine guns with curved barrels (for shooting around corners), would it be possible to make a barrel with a complete loop?
If so, it might help reduce the velocity problem a short .223 PDW has.
Such barrels do exist, but imagine the stresses that a barrel has to undergo? You can’t make a reliable firearm like that.
Well, it wouldn’t be so bad if they used some expanding ammunition. Truncated cone bullets might do the trick.