Firearms

Lahti Suomi KP/-31

Specifications

About

Notable Variants

Aftermarket Ecosystem

Historically Significant Examples

Serial Number Data

Production data from factory records and collector research. Year ranges are approximate for pre-1968 firearms.

Years	Serial Range	Count	Factory	Country	Confidence

Finnish submachine gun of exceptional quality; used to devastating effect in the Winter War. High cyclic rate and drum magazine. Influenced later SMG designs.

Type: Submachine Gun

Action: Select-Fire

Caliber: 9mm Luger

Capacity: 25

Year introduced: 1931, Finland

Weight: 272 oz

Overall length: 48"

Status: Discontinued

Military use: Yes

Intended use: Military