Is a riverside arms side by side shotgun 1879 rare?

Yes, the Riverside Arms side-by-side shotgun model from 1879 is considered rare, particularly in good condition. Riverside Arms was a brand associated with lower-cost, mass-produced firearms, and those from the late 19th century have become collectible due to their historical significance and limited availability. The rarity can also depend on specific features, condition, and provenance of the individual firearm. Collectors often seek these models, contributing to their desirability in the market.