My vortex BBMG rifle I made years ago.. Not another one like it, the way I machined the internals and block, etc... Blasts through about 3500 copperhead rounds (max capacity) in maybe a minute or less. They spool up inside the vortex block faster than a turbo before they feed into the barrel, and sounds pretty cool, lol. Hookup air tank, c02 tank or whatever. I used a rifled barrel too, so they spiral out of the barrel in a straight line, instead of hitting into each other and forming a spray pattern. Its like shooting a laser beam. I can mow tall weeds and even little trees down, or disintegrate cinder blocks into nothing, looking like 4th of July shower at night. It's f'ing ridiculous to shoot, but been sitting in the closet for like 10 years. I feel bad unloading a 6000 pack of BBs in a few minutes.. and scared to loose an eye..