Pac6 Table2
They’re selling the plans for $15 – “The P.A.C. 6. Xinventions is proud to have designed this first ever easy to build, semi-auto air cannon. This cannon is totally portable due to the CO2 hook up! The auto loading system means that you never have to muzzle load a projectile, it does it for you. You simply shoot away. “ [via] – Link.

Related:

  • The Night Lighter by William Gurstelle. Launch potato projectiles 200+ yards with this stun-gun triggered, high-powered potato cannon with see-thru action. (Good thing potatoes are biodegradable.) MAKE 03 – Page 108.
  • More potato cannons – Link.