The M1 Garand is gas operated. So this an "assult weapon"?
The Maxim Machine Gun is recoil operated. So this not an "assult weapon"?
Which would you rather your fellow citizens have?
Seems a recoil operated weapon will shoot about as fast as a gas operated one.
The Garand falls under the same category as the M14, and the official classification was "battle rifle", despite the ability of the M14 to shoot automatic salvos, normally they should be assault rifles (at least by our modern classification). And no, the Maxim falls under the category machine gun, and it is quite irrelevant if gas or recoil operated, the fire mode is relevant here.
With large caliber ammunition it is better (because less complicated) to use recoil loading, with smaller ammunition gas loading.
And as far as I am concerned they can have all of them if they handle them with the care that should be given to a firearm.