Pistol bags & slips allow you to move your pistol without being in the public's view. Moving pistol bb guns in full view of the public is not a good idea and is dangerous to do so as they can easily be mistaken for the real thing. The pistol slips we sell should fit almost any handgun. Some of the slips even can hold two guns. This type of case also helps if you are putting you slip into a bigger backpack or bag, as it will keep your pistol stuff together (i.e mags co2, allan keys etc) and stop other equipment hitting your pistol and scratching or damaging it.