Question: Mikhail Kalashnikov developed the AK-47, which is what type of device?

full_context: Document 1: AK-47: The AK-47, or AK as it is officially known (Russian: Автомат Калашникова , "Avtomat Kalashnikova ", 'Kalashnikov's Automatic Rifle' ), also known as the Kalashnikov, is a selective-fire (semi-automatic and fully automatic), gas-operated 7.62×39mm assault rifle, developed in the Soviet Union by Mikhail Kalashnikov. It is the originating firearm of the Kalashnikov rifle (or "AK") family.
Document 2: PP-19 Bizon: The Bizon ("Bison") is a 9mm submachine gun developed in the early 1990s at Izhmash by a team of engineers headed by Victor Kalashnikov (son of the famous engineer Mikhail Kalashnikov, creator of the AK-47 & AK-74). Alexei Dragunov, youngest son of Evgeny Dragunov (the creator of the SVD sniper rifle), was also a member of the design team.
Document 3: Kalashnikov rifle: A Kalashnikov rifle is any one of a series of automatic rifles based on the original design of Mikhail Kalashnikov. They are officially known in Russian as "Avtomat Kalashnikova" ("Kalashnikov's Automatic Gun"; Russian: Автома́т Кала́шникова ), but are widely known as Kalashnikovs, AKs, or in Russian slang, as a "Kalash". They were originally manufactured in the Soviet Union, primarily by Izhmash, but these rifles and their variants are now manufactured in many other countries.
Document 4: Victor Kalashnikov: Victor Mikhailovich Kalashnikov (Russian: Ви́ктор Миха́йлович Кала́шников ; is a Russian small arms designer known for developing the PP-19 Bizon submachine guns. He is the son of Mikhail Kalashnikov.
Document 5: AKM: The AKM (Russian: Автомат Калашникова модернизированный , "Avtomat Kalashnikova modernizirovanniy ", 'Modernized Automatic Kalashnikov' ) is a 7.62mm assault rifle designed by Mikhail Kalashnikov. It is a common modernized variant of the AK-47 rifle developed in the 1940s.
Document 6: StG 44: The StG 44 (abbreviation of Sturmgewehr 44, "assault rifle 44") is a German selective-fire rifle developed during World War II. It is also known under the designations MP 43 and MP 44 ("Maschinenpistole 43", "Maschinenpistole 44" respectively).
Document 7: Type 58 assault rifle: The Type 58 is an assault rifle made in North Korea derived from the Soviet AK-47 designed by Mikhail Kalashnikov. It uses a 7.62×39mm cartridge. It is the longest version of the rifle at 890 mm, while the AK-47 is 870 mm.
Document 8: Knight's Armament Company SR-47: The SR-47 is a modern rifle based on the AR-15 family of rifles created by Knight's Armament Company for USSOCOM. Unlike the majority of ArmaLite-type guns, the SR-47 is essentially an AR-15 that fires the Soviet 7.62×39mm round from AK-47 magazines, which explains the "47" in the gun's name. The rifle was created after soldiers on long missions in Operation Enduring Freedom complained of running out of 5.56×45mm NATO ammunition for their M4 carbines but having plenty of captured AK-47 magazines. The SR-47 is basically an M4 that will accept standard AK-47 magazines rather than NATO STANAG M16/M4 mags, along with other minor modifications common to KAC's designs.
Document 9: SKS: The SKS is a Soviet semi-automatic carbine chambered for the 7.62×39mm round, designed in 1943 by Sergei Gavrilovich Simonov. Its complete designation, SKS-45, is an initialism for Samozaryadny Karabin sistemy Simonova, 1945 (Russian: Самозарядный карабин системы Симонова , 1945; Self-loading Carbine of (the) Simonov system, 1945). The SKS-45 was manufactured at Tula Arsenal from 1949-1958 and at Izhevsk Arsenal in just 1953 and 1954, resulting in a total Soviet production of about 2.7 million carbines. In the early 1950s, the Soviets took the SKS carbine out of front-line service and replaced it with the AK-47; however, the SKS remained in second-line service for decades. It is still used as a ceremonial firearm today. The SKS was widely exported, and was also licensed for production by then Eastern Bloc nations, Romania and East Germany, as well as China, where it was designated the "Type 56 Carbine". The East German version was known as the Karabiner S, the Albanian as the Model 561 and North Korean as the "Type 63". The SKS is popular on the civilian surplus market as a hunting and marksmanship semi-automatic rifle in many countries, including the United States, Canada, and New Zealand. Its age and numbers make it relatively inexpensive to purchase, and steel cased 7.62x39mm ammunition is one of the least expensive center fire cartridges currently on the market. The SKS was the second firearm to be chambered for the 7.62×39mm M43 round, with the first being the RPD.
Document 10: Viktor Kalashnikov: Viktor Kalashnikov (Russian: Виктор Калашников ) is a Russian freelance journalist and a former KGB colonel. In the autumn of 2010, he and his wife were treated in hospital in Germany for mercury poisoning in what they said had been an attempt on their lives by Russia's FSB, the successor to the KGB. He is a distant relative of Mikhail Kalashnikov, the inventor of the AK-47.
Document 11: Mikhail Mil: Mikhail Leontyevich Mil (Russian: Михаи́л Лео́нтьевич Миль ; 22 November 1909 – 31 January 1970) was a Soviet aerospace engineer. He founded the Mil Moscow Helicopter Plant, which is responsible for many well-known Soviet helicopter models.
Document 12: TKB-408: The TKB-408 was an early gas-operated prototype bullpup assault rifle with a tilting bolt. It was created by German A. Korobov and submitted to a set of official trials conducted in 1946 to select an assault rifle for the Red Army. None of the designs submitted to these trials were selected, although the AK-47 that was later adopted was a heavily modified variant of Mikhail Kalashnikov's AK-46.
Document 13: Gewehr 43: The Gewehr 43 or Karabiner 43 (abbreviated G43, K43, Gew 43, Kar 43) is a 7.92×57mm Mauser caliber semi-automatic rifle developed by Germany during World War II. The design was based on that of the earlier G41(W), but incorporating an improved short-stroke piston gas system similar to that of the Soviet Tokarev SVT-40, and it incorporated innovative mass-production techniques.
Document 14: RPK: The RPK ("Ruchnoy Pulemyot Kalashnikova", Russian: "Ручной пулемёт Калашникова" or "Kalashnikov hand-held machine gun") is a 7.62×39mm light machine gun of Soviet design, developed by Mikhail Kalashnikov in the late 1950s, parallel with the AKM assault rifle. It was created as part of a program designed to standardize the small arms inventory of the Red Army, where it replaced the 7.62×39mm RPD light machine gun. The RPK continues to be used by the armed forces of countries of the former Soviet Union and certain African and Asian nations. The RPK was also manufactured in Bulgaria and Romania.
Document 15: Mikhail Kalashnikov: Lieutenant-General Mikhail Timofeyevich Kalashnikov (Russian: Михаи́л Тимофе́евич Кала́шников ; ] ; 10 November 1919 – 23 December 2013) was a Russian general, inventor, military engineer, writer and small arms designer. He is most famous for developing the AK-47 assault rifle and its improvements, the AKM and AK-74, as well as the PK machine gun and RPK light machine gun.
ground_truth: assault rifle