Sjogren
The Sjögren Inertia Shotgun (marked: Automat, system Sjögren Patent) is a 12–16 gauge semi-automatic shotgun that was designed by the Swedish inventor Carl Axel Theodor Sjögren,
initially manufactured by AB Svenska Vapen- och Ammunitionsfabriken in Sweden and then by Håndvåbenværkstederne Kjøbenhavn in Denmark.
It used
an inertia system later revived by the Italian firm Benelli and today widely
used in shotguns.
A small number of semi automatic military rifles in 7.62×63mm calibre were based on the Swedish Mauser using the Sjögren system,
fed from
internal seven round magazines, were also built, and tested by potential buyers,
but found no market.
