Nope; A rifle that shoots a pistol round in semi auto or full auto mode is a subcompact Thats DOD classification Exceptions being; Tube loaded lever or pump action Magnum and revolver rifles Bolt action pistol rifles (either the pistol with shoulder stock or extended barrel or both) The MP5 is a subcompact machine pistol The MAC-10 is a subcompact Thompson platform that can be fired as pistol or have the included parts to convert to a rifle. The G3 or C3 is the rifle round version of the MP5 platform and the actual semi auto rifle of that platform. The P90 is a subcompact that fires the 5.7 caliber round.