The Eidgenössischer Stutzer 1851 (Federal Carbine 1851), also called Feldstutzer 1851, was the first service rifle

Service rifle

The service rifle of a given army or armed force is that which it issues as standard to its soldiers. In modern forces, this is typically a highly versatile and rugged assault rifle suitable for use in nearly all theatres and environments...

 used by the Swiss armed forces to be procured by the federal government

Swiss Federal Council

The Federal Council is the seven-member executive council which constitutes the federal government of Switzerland and serves as the Swiss collective head of state....

, which was responsible for the armament of the Cantonal armed forces under the 1848 federal constitution. It was also the first military weapon in Europe to use the smaller 10.5 mm caliber (later reduced to 10.4 mm) instead of the prior de facto standard of 18 mm.

The Stutzer was refitted with a Milbank Amsler breechloading system (à tabatière) in 1867.