A BB gun is a type of air gun designed to shoot metallic spherical projectiles called BBs (not to be confused with similar-looking bearing balls), which are approximately the same size as BB-size lead birdshot used in shotguns. Modern BB guns usually have a smoothbore barrel with a 0.177 inch caliber, and use steel balls that measure 0.171–0.173 inches in diameter and 5.1–5.4 grams in weight, usually zinc- or copper-plated for corrosion resistance.
We think you’ll love these