4.5mm BBs can be lethal, Airsoft Pistols firing 6mm BBs are NOT, fact
The maximum for an airsoft pistol is 1 joule. It is this power that defines an airsoft pistol not the 6mm BB.
Co2 pistols using 6mm BBs are NOT airsoft, the Dan Wesson is a powerful pistol, the
Ruger Superhawk is an animal, both are definately not airsoft.
Please get your facts right.