J. Stevens Model 520-30 Riot 12 Gauge Pump Shotgun, WWII-Era, 20" Barrel, 2 3/4" Chamber, Cylinder Bore, Browning Takedown
This WWII-era Stevens Model 520-30 Riot is a Browning-designed pump shotgun recognized for its distinctive double-hump receiver, Browning takedown system, and left-side ejection. It features a 20" cylinder-bore barrel with a 2 3/4" chamber and a bead front sight. The barrel rollmark denotes Division of Savage Arms Corp. production, and the design enables slam-fire operation due to the absence of a disconnector.
Condition
Overall Condition: Poor condition.
Bore Overall Condition: Poor - Noticeable dirt, stains, significant corrosion or damage.
Specific Condition Notes: The firearm exhibits heavy rust and corrosion and is completely locked up. It will require extensive restoration and gunsmithing to return to service.
What's Included
- J. Stevens Arms Co. Model 520-30 Riot 12 gauge pump-action shotgun
The Model 520-30 Riot configuration pairs John Browning's takedown system with the model's hallmark double-hump receiver profile. This example shows the left-side ejection port and a single left-side action bar, with an internal hammer and takedown construction for transport and maintenance.
Its 20" barrel is set up with a fixed cylinder choke and a bead front sight, with no rear sight, matching the riot configuration. The chamber is 2 3/4". An under-barrel tubular magazine feeds the action, and capacity is noted as 2+1 as configured.
The shotgun retains classic walnut furniture, including a smooth walnut fore-end and a walnut semi-pistol-grip buttstock. Length of pull measures 13.75".
The design permits slam-fire operation due to the lack of a disconnector, a period-correct characteristic of this platform. The barrel is rollmarked as a Division of Savage Arms Corp. product, aligning with WWII-era production.




