The Standardmodell rifle is a bolt-action rifle designed to chamber the 7.92×57mm Mauser cartridge. The rifle was developed in 1924 but entered full-scale production in 1933. Officially designed for export and German security guards, it was used by the paramilitary Sturmabteilung (SA) and Schutzstaffel (SS). Export variants were used in South America, Ethiopia, China and the Iberian Peninsula. The carbine version of this rifle was almost identical with the Karabiner 98k that became the standard German service rifle during World War II.
Type 24 Chiang Kai-shek rifle, a Chinese licensed copy of the Mauser Standardmodell Rifle.
Bolt-action is a type of manual firearm action that is operated by directly manipulating the bolt via a bolt handle, most commonly placed on the right-hand side of the firearm. The majority of bolt-action firearms are rifles, but there are also some variants of shotguns and handguns that are bolt-action. A firearm using bolt-action mechanism is colloquially referred to as a bolt gun.
The AWM sniper rifle, a bolt-action rifle
A US Marine extracts a fired cartridge from an M40A3 using a bolt-action mechanism
A disassembled Karabiner 98k action
Close-up of the action on an SMLE Mk III rifle, showing the bolt head, magazine cut off, and charger clip guide.