What definitively is an "aids cannon"??
for an AR, it is 12.1"bbl with a pistol buffer tube. not a pistol because the bbl is over 12 inches, but not a rifle because its not designed to be fired from the shoulder. two ways of firing it, from the hand, and well you can figure out the other way, lol
you can do it an AK, FAL, etc. just gota make sure its 26 oal per ATF. and over a 12 bbl for CT laws.
and the most important, is it starts life as a virgin receiver