Editing M2 Browning (section)

=== 13,2 mm FN Browning ===
One derivative of the M2 Browning is the [[Mitrailleuse d´Avion Browning - F.N. Calibre 13,2 mm]], more commonly known as the FN Browning M.1939. The FN Browning M.1939 was a heavily modified M2 Browning for aircraft use designed by [[FN Herstal]] for export. Their aim was to make a light, reliable heavy machine gun with the same damage output as a 20&nbsp;mm autocannon. To achieve this, they raised the firing rate to 1080 rpm and gave it a more powerful cartridge in the form of the [[13.2×99mm Hotchkiss]].<ref>{{Cite book |title=La mitrailleuse Browning FN booklet}}</ref> This cartridge was a popular Eurasian analog of [[.50 BMG]] developed independently in 1920s with a 13.2&nbsp;mm bullet (.52 in) and more propellant. A new projectile was designed for this gun. It was of a high explosive type and was designed to take down a small aircraft with a single hit. Tests showed that it was very effective against both cloth and aluminum skinned aircraft.<ref>{{Cite book |title=La mitrailleuse Browning FN, kapitel XII. Les munitions F.N. calibre 13,2 mm}}</ref>

Due to the aforementioned improvements, the gun received interest from numerous nations when it entered the export market in 1939. Due to the start of World War 2 and the invasion of [[Belgium]] it was exported to only [[Romania]] and [[Sweden]].<ref name=":0" /> Sweden was able to buy the majority of the weapons along with the blueprints to produce the weapon on their own without paying for a license. In Sweden, the weapon received the designation Automatkanon m/39, short Akan m/39, meaning Autocannon m/39 and was later produced by [[Ericsson]] as the Akan m/39A. Sweden also gave the blueprints to [[Finland]] so they could produce the weapon. Since Finland was already producing 12.7&nbsp;mm ammunition, the Finnish variant was rechambered to 12.7&nbsp;mm (.50 BMG). The Finnish variant was designated VKT 12,70 LKk/42 and was produced by Finland.