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35-mm GDF

Country of Origin: Switzerland


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...

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