The Danuvia/Király submachine guns were Hungarian submachine guns designed by Pál Király in the late 1930s and used during World War II and the 1950s.
History
The 9×25mm Danuvia submachine gun was designed by Hungarian engineer Pál Király in the late 1930s, and was produced by the titular Danuvia company. The guns were issued to Hungarian army troops in 1939 and remained in service throughout World War II and until the early 1950s. A total of up to 30,000 were roughly made between 1939 and 1944, the Hadtörténeti Intézet és Múzeum(hu)claims that only 10,000 of all variants were made. The Danuvia was a large, sturdy weapon, similar to a carbine. Inspired by the SIG MKMS, the Danuvia used the more powerful 9×25mm Mauser round, and incorporated lever-delayed blowback in order to better manage this high energy cartridge. The Danuvia's magazine can be folded forward into a recess in the stock where a plate then slides over it.
The gun was well-liked by troops it was issued to; it reportedly functioned well in the sub-zero, muddy conditions on the Eastern Front. The only difficulty was the availability of 9×25mm Mauser ammunition. It was used by the Hungarian army, military police and police forces and stayed in service until the early 1950s when it was gradually replaced by the PPSh-41 and the Kucher K1.
Design
The Danuvia featured a patented two-part lever-delayed blowback bolt. The 50M was made to repurpose old 43Ms still in storage by cutting them down, giving them a new barrel shroud and rechambering them in 7.62 Tokarev.
Gallery
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File:39M-Patent.jpg|Screenshot of the patent for the Danuvia 39M
File:Hungarian soldiers in the Carpathians.jpg|Hungarian soldiers in 1944, one of them is armed with a Danuvia 39M
File:Danuvia 39M.png|The earlier Danuvia 39M
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