Check this thing out only in the good old USA
watch video
http://prepforshtf.com/airbow-maybe-time-looked-one/
That looks lethal. "An AirBow, of course, uses compressed air to fire bolts, or arrows if you prefer to call them that. At 3,000 PSI an AirBow can fire, eight full sized arrows before refilling, at 450 FPS." The Yanks do love inventing new ways to murder things ;)
https://www.youtube.com/watch?v=dwqMkjYjmtw