This is supposedly a Chinese clone of a Win 1200 or 1300. Look into whether or not a stock for one will fit your 320. My personal pref is a standard stock but its your gun. These are supposed to fit Winchesters
I have to ask for proof that the Stevens is a Chinese clone. It is an American made firearm and IS NOT under the freedom-group umbrella as these makers are,
REMINGTON
BUSHMASTER
REMINGTON MILITARY
REMINGTON LE
MARLIN FIREARMS
H&R 1871
DAKOTA ARMS
DPMS / Panther Arms
PARKER GUNMAKERS
BARNES BULLETS
ADVANCED ARMAMENT
PARA USA
REMINGTON PMPD
MOUNTAIN KHAKIS