Stevens 520 Double Hump

[nhetzer]

I don't believe the double hump was ever a service shotgun. While everyone refers to the Stevens guns as the 520 and 620, the 520 that was in service (single hump) was the 520-30 as you know. I can't swear that the original 520 never had a role in the military, but from my research, not as a combat weapon.