The Hammerli FK-31 is a rare, diopter-sighted competition variant of the Schmidt-Rubin K-31 rifle, originally procured by early Israeli forces around 1948. These rifles were part of a clandestine order of 200 units, officially destined for Nicaragua but diverted to Israel. The FK-31 features integrated diopter sights, a departure from standard military K-31s, and retains the K-31's reliable straight-pull bolt action and 6-round detachable magazine chambered in 7.5x55mm Swiss.
This video details the rare ZK-31, a Swiss K31 rifle modified for Israeli forces during their War of Independence. It highlights the rifle's clandestine acquisition, unique scope mounting system with quick-detach capabilities, and specific markings designed for deniability. The discussion also covers the Kahles scope's adjustable BDC rings and the practical advantage of the left-offset mount for reloading.
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