Roth–Steyr M1907

The Roth–Steyr M1907, or, more accurately Roth-Krnka M.7 was a semi-automatic pistol issued to the Austro-Hungarian Kaiserliche und Koenigliche Armee cavalry during World War I. It was the first adoption of semi-automatic service pistol by the land army of a major power.

The Roth–Steyr pistol fires from an unusual style of locked breech. The bolt is very long. Its rear end is solid, except for a sleeve for the striker, but its front part is hollow and fits tightly over the barrel. The interior of the bolt has cam grooves cut into it, and the barrel has studs which fit into the grooves. When the pistol is fired, the barrel and bolt recoil together within the hollow receiver for about 0.5 inch. During this operation, the helical grooves in the muzzle bush cause the barrel to turn 90 degrees clockwise, after which it is held while the unlocked bolt continues to the rear, cocking the action as it does so. For safety with intended use by mounted cavalry, the pistol has a heavy trigger pull against the firing striker spring, similar to a hammerless revolver.

The Roth–Steyr is a locked-breech pistol, which allows the barrel and bolt to recoil together within a hollow receiver. It is chambered for a cartridge specific to this model. The Roth–Steyr does not have a detachable magazine, but features a fixed magazine loaded from the top with stripper clips. The sights are fixed, the grips are wooden and terminate in a lanyard ring. Rifling is four grooves with right-hand twist.

Roth–Steyr M1907
Class Manportable
Type Handguns
Manufacturer Steyr-Daimler-Puch
Production Period 1908 - 1914
Origin Austria-Hungary
Country Name Origin Year
Austria-Hungary 1909
Country Name Operational Year Retirement Year
Czechoslovakia View
Poland View
Yugoslavia (Serbia) View
Austria-Hungary 1909 1945 View
ManufacturerName Production From Production To Quantity
Steyr-Daimler-Puch 1908 1914 View

Type Semi-automatic pistol
Place of origin  Austria-Hungary
Service history
In service 1909–1945
Used by Austria-Hungary, Austria,Kingdom of Hungary,Kingdom of Italy, Poland,Kingdom of Yugoslavia,Czechoslovakia
Wars World War I, World War II
Production history
Designer Karel Krnka
Designed 1900
Manufacturer Œ.W.G. in Steyr
F.G.GY. in Budapest
Produced 1908–1914
Number built 99000
Weight 1,030 g (36 oz)
Length 23 cm (9.1 in)
Barrel length 13 cm (5.1 in)
Cartridge 8mm Roth–Steyr
Action Recoil operated
Muzzle velocity 330 m/s (1,100 ft/s)
Effective firing range 75 meters
Maximum firing range 1400 meters
Feed system 10-round integral box magazine, fed by stripper clip
Sights Iron

End notes