A
BB gun is a
pneumatic gun mostly powered by air or a spring. Most BB guns are shaped like normal guns but can look like toys. Some may have cartridges and some are
muzzleloaders. They use little pellets called BB's (
plastic or
copper). One brand of these pellets is
Copperhead. A pellet does more damage than a BB, because the pellet has a pointy tip, or a flat front, whereas a BB is round.