Burnside carbine
Burnside carbine is a carbine or weapon model.
Overview
Breech-loading carbine.
In detail
It is associated with United States.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Burnside carbine”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q5000160: Burnside carbine
Consult the source