The LMG-25, Switzerland's first modern light machine gun, features a unique toggle-locking system developed by Adolf Furrer. Chambered in 7.5x55mm Swiss, it offers select-fire capability and a 30-round magazine compatible with the Stgw 57. A notable feature is the Advanced Primer Ignition (API) system, which reduces felt recoil and rate of fire by igniting the primer while parts are still moving forward.
The WF-51 was a Swiss intermediate-cartridge rifle developed by Adolf Furrer at Waffenfabrik Bern, inspired by the German FG-42. It featured a unique tipping bolt mechanism and was chambered in 7.5x38mm, with 35 units produced for trials. Although it did not enter service, its development influenced later Swiss firearms before the adoption of the SIG Stgw 57.
Toggle action firearms, though rarely made today, are iconic in early self-loading designs like the Luger and Maxim gun. This mechanism uses a 'knee joint' linkage that locks straight when fired, preventing premature opening. It typically relies on short recoil to initiate unlocking, cycling the action for ejection and reloading. While offering a safe locked breech, toggle actions require precise machining and are susceptible to fouling, leading to their obsolescence by the 1930s.
The Swiss Tankbuchse 41 (Tb 41) is an extremely rare 24mm semiautomatic antitank rifle developed by Waffenfabrik Bern. Featuring Adolf Furrer's signature toggle-lock action and short recoil operation, it fired a 24x138mm round capable of penetrating 36mm of armor at 500 meters. Originally intended for tanks, it also saw infantry, boat, and fortress deployment, with approximately 3,600 units produced.
This video explores the rare Bern Prototype Cavalry Carbine from the 1920s, designed by Adolf Furrer. It highlights the carbine's early experimentation with intermediate cartridges (7.65x27mm and 7.65x35mm), predating the German StG-44 by decades. The design features a unique tube magazine and a long recoil action, showcasing a blend of older and innovative technologies.
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