The redesigned Model 520A was closely related to the Model 520, utilizing the same takedown action and locking breech block.
 The receiver lost the distinctive double hump and had a flat top and squared-off back end.
The safety was moved to the receiver tang and the trigger housing was redesigned to use a coil mainspring instead of a flat bar mainspring.
 The 520A continued to be sold as a store branded gun and under Stevens' budget line Riverside Arms (stamped Model 520).
 The 520A was never shown in a Stevens sales publication, it only appeared in Sears & Roebuck and Montgomery Wards catalogs and in Stevens component parts catalogs (the only source where it was identified as a 520A).

Stevens halted civilian production in 1942 to make weapons for use by the US military during World War II (see Model 520-30 below).
 Civilian Model 520A production resumed after World War II, again as store branded guns, and continued until 1948.
The redesigned Model 520A was closely related to the Model 520, utilizing the same takedown action and locking breech block.  The receiver lost the distinctive double hump and had a flat top and squared-off back end. The safety was moved to the receiver tang and the trigger housing was redesigned to use a coil mainspring instead of a flat bar mainspring.  The 520A continued to be sold as a store branded gun and under Stevens' budget line Riverside Arms (stamped Model 520).  The 520A was never shown in a Stevens sales publication, it only appeared in Sears & Roebuck and Montgomery Wards catalogs and in Stevens component parts catalogs (the only source where it was identified as a 520A).
Stevens halted civilian production in 1942 to make weapons for use by the US military during World War II (see Model 520-30 below).  Civilian Model 520A production resumed after World War II, again as store branded guns, and continued until 1948.
Stevens Model 520/620