Check with a local gunsmith. Parts from a J. Stevens single shot should fit. Numrich may also be able to help you.
Single shot, $35 - $90. Double barrel, $100 - $250.
riverside arms co. split single shot gun
50 Bucks...
What year was riverside, 12 gauge, single shot ,model 548 made
If it is a single-shot, $75-$150. Double barrel, $150-$300.
Riverside was an 'economy' brand used by the Stevens division of Savage in the 20's and 30's.
$50-$75 retail.
$75
try looking at savage or Stevens shotgun diagrams. I found a firing pin for a 16 gauge riverside it was an old model 94 Stevens part
Brake barrel rifles are single shot rifles. After each shot you have to fold the barrel down (Break the barrel) in order to cock it again.
What year is 16 gage single shot Springfield barrel and lug forged one piece inside barrel wwdt
Try Numrich Gun Parts Corp.