My japanese is pretty good, and I can't figure out from the copy what sort of guns these are, although it does seem like they do fire. airsoft i think no because no place for the canister, so I'm going to guess BB.

what I can figure out is they're "high quality sport guns" (which can mean airsoft, but usually there's 'air' in there somewhere") with all the 'detachable' attachments to make the base 7mm into a rifle and what not

in any case, an interesting ad. . .