Crosman’s Copperhead copper-coated .177 / 4.5mm BBs provide reliable and consistent performance with almost any .177 / 4.5mm-caliber BB air rifle or air pistol. Ideal for those just entering the BB air rifle/pistol sport, for marksmanship skills development, and backyard BB plinking enthusiasts.Made with quality materials for consistent and reliable performance.Recommended for use with Crosman BB air rifles and BB air pistols

Please note: Only to be used for steel shot approved BB guns – not conventional air rifles