35-mm GDF Weapon Systems // Artillery/Guns // Towed Artillery Guns/Howitzers

The Swiss Oerlikon GDF-series 35-mm twin anti-aircraft gun system has been in production and service for almost three decades and has been updated several times. The first production guns were designated 27La/353MK, but Oerlikon later recast its naming system, redesignating the guns the GDF-001. The Swiss designation is Mod 63/75. The GDF system uses one of the KD series of 35-mm cannon. The KD guns are gas-operated weapons with a positive-lock breech and progressive-twist rifling...