300 STEEL BBS 4.5MM SILVER

Compatible with all 4.5mm PISTOLS

BB guns are a type of air gun design to fire spherical projectiles similar to shot pellets of approximately the same size. Modern BB guns usually have a barrel with a bore and caliber of 4.5 mm (0.177 in) and are available in many varieties.

BB shot for modern BB guns is usually steel,coat either with zinc or copper to resist corrosion. BB shots also measure 4.3 to 4.4 mm (0.171 to 0.173 in) in diameter.

In fact, some manufacturers still make lead balls of slightly larger diameter which are generally intended for use in rifled BB gun barrels.