Nope, sorry, for purposes of transport in 4-203, that is a handgun.
Hmmmmmmmmm
It must be in an enclosed case or enclosed holster and only transported to the permitted places and purposes (like hunting or target shooting).(c) (1) "Handgun" means a pistol, revolver, or other firearm capable of being concealed on the person.
(2) "Handgun" includes a short-barreled shotgun and a short-barreled rifle.
However, one made before 1899 might be ok as a trunk gun.
(3) "Handgun" does not include a shotgun, rifle, or antique firearm.