The light "mountain gun" was a popular artillery piece during the smoothbore era.
In 3 to 6 pdr sizes, it's light weight, in comparison to full size pieces, gave it exceptional maneuverability in every climate and terrain.
Compact, but with a fearsome close quarters bite, the mountain gun was a positive addition to troops that would otherwise be armed only with sidearms, muskets and hand weapons.
The pirate from Privateer Press gives a good idea as to the relative small size of this mountain gun.
The mountain gun is a metal piece from Foundry.