The AK-47

An Afghanistan National Police (ANP) instructo...
An Afghanistan National Police (ANP) instructor demonstrates to ANP recruits how to aim an AK-47 rifle at a range near the regional training center for the ANP near Gardez, Afghanistan.  
The AK-47 is a selective-firegas-operated 7.62×39mm assault rifle, first developed in the USSR by Mikhail Kalashnikov. It is officially known as Avtomat Kalashnikova (RussianАвтомат Калашникова). It is also known as a Kalashnikov, an AK or in Russian slang,Kalash.
Design work on the AK-47 began in the last year of World War II (1945). After the war in 1946, the AK-46 was presented for official military trials. In 1948 the fixed-stock version was introduced into active service with selected units of the Soviet Army. An early development of the design was the AKS (S—Skladnoy or “folding”), which was equipped with an underfolding metal shoulder stock. In 1949, the AK-47 was officially accepted by the Soviet Armed Forces[10] and used by the majority of the member states of the Warsaw Pact.
The original AK-47 was one of the first assault rifles of 2nd generation, after the German StG 44.[11] Even after six decades the model and its variants remain the most widely used and popular assault rifles in the world because of their durability, low production cost, and ease of use. It has been manufactured in many countries and has seen service with armed forces as well as irregular forces worldwide. The AK-47 was the basis for developing many other types of individual and crew-served firearms. More AK-type rifles have been produced than all other assault rifles combined.[3]

Design

The first assault rifle to see service was created in 1915 by Vladimir Fyodorov,[11][12][13][14][15][16] following the experience gathered in theRusso-Japanese War. Several countries had already developed and adopted low-power rifle cartridges since 1890s (such as 6.5×52mm Mannlicher-Carcano) as their standard infantry ammunition. The Russo-Japanese war, however, had demonstrated the regular rifles’ lack of suppressive firepower,[17] in addition to the excessive range of their ammunition.[18] The latter was also confirmed in World War I. TheFyodorov’s assault rifle went out of production after the Soviet armed forces decided to standardize its infantry weaponry around only the most popular types of cartridges following the Russian Civil War. The Soviet Union had returned to the development of an assault rifle in 1942 when the need for an intermediate-powered rifle became clearly evident.[19] By that time submachine guns were already in widespread use but they could not replace service rifles because of limited power of pistol cartridges. Like the Germans, the Soviets designed an intermediate cartridge that could be made on existing production lines (despite Vladimir Fyodorov’s insistence on a special small-calibre cartridge).[16][20] The work on the weapons for the new ammunition commenced in 1943, with the AK-47 of Mikhail Kalashnikov, the SKS-45 of Sergei Simonov and the RPD of Vasily Degtyaryov emerging as the victors.
Mikhail Kalashnikov began his career as a weapon designer while in a hospital after he was shot in the shoulder during the Battle of Bryansk.[4][21] After tinkering with a submachine gun design, he entered a competition for a new weapon that would chamber the 7.62×41mm cartridge developed by Yelizarov and Syomin in 1943 (the 7.62×41mm cartridge predated the current 7.62×39mm M1943). A particular requirement of the competition was the reliability of the firearm in the muddy, wet, and frozen conditions of the Soviet front line. Kalashnikov designed a carbine, strongly influenced by the American M1 Garand, that lost out to the Simonov design (scaled down PTRS-41), that later became the SKS semi-automatic carbine. At the same time, the Soviet Army was interested in developing a true assault rifle employing a shortened M1943 round. The first such weapon was presented by Sudayev in 1944, but trials found it to be too heavy.[22] A new design competition was held two years later where Kalashnikov and his design team submitted an entry. It was a gas-operated rifle which had a breech-block mechanism similar to his 1944 carbine, and a curved 30-round magazine.
Kalashnikov’s rifles (codenamed AK-1 and −2) proved to be reliable and the weapon was accepted to second round of competition along with designs by A. A. Dementyev and A. A. Bulkin. In late 1946, as the rifles were being tested, one of Kalashnikov’s assistants, Aleksandr Zaitsev, suggested a major redesign of AK-1, particularly to improve reliability. At first, Kalashnikov was reluctant, given that their rifle had already fared better than its competitors. Eventually, however, Zaitsev managed to persuade Kalashnikov. The new rifle proved to be simple and reliable under a wide range of conditions with convenient handling characteristics. Production of the first army trial series began in the early 1948,[23] and in 1949 it was adopted by the Soviet Army as “7.62 mm Kalashnikov assault rifle (AK)”.[10]
The AK-47 is best described as a hybrid of previous rifle technology innovations:[24] the trigger mechanism,[25] double locking lugs and unlocking raceway[citation needed] of the M1 Garand/M1 carbine, the safety mechanism of the John Browning designed Remington Model 8 rifle,[citation needed] and the gas system of the Sturmgewehr 44.[citation needed] Kalashnikov’s team had access to all of these weapons and had no need to “reinvent the wheel”,[24] though he denied that his design was based on the German Sturmgewehr 44 assault rifle.[26] Kalashnikov himself observed: “A lot of Russian Army soldiers ask me how one can become a constructor, and how new weaponry is designed. These are very difficult questions. Each designer seems to have his own paths, his own successes and failures. But one thing is clear: before attempting to create something new, it is vital to have a good appreciation of everything that already exists in this field. I myself have had many experiences confirming this to be so.”[21] There are claims about Kalashnikov copying other designs, like Bulkin’s TKB-415[2] or Simonov’s AVS-31.[27]
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