| Experimental Model 2 submachine gun | |
|---|---|
 | |
| Type | Submachine gun |
| Place of origin |  Empire of Japan |
| Service history | |
| In service | 1935–1945 (Japan) |
| Used by |  Imperial Japanese Army |
| Wars | Second Sino-Japanese War World War II Chinese Civil War[1] |
| Production history | |
| Designer | Kijiro Nambu |
| Designed | 1935 |
| Manufacturer | Nambu |
| No. built | 50-150 |
| Variants | Mukden Type 2 |
| Specifications | |
| Mass | 3.37 kg (7 lb 7 oz) empty 4.39 kg (9 lb 11 oz) loaded |
| Length | 896 mm (35 in) |
| Barrel length | 228 mm (9 in) |
| Cartridge | 8×22mm Nambu .45 ACP (Mukden Type 2) |
| Caliber | 8 mm 11.5mm (Mukden Type 2) |
| Action | Blowback |
| Rate of fire | 600 rounds/min |
| Feed system | 30 and 50 round box magazine[2] |
| Sights | Iron sights |
The Experimental Model 2 submachine gun (試製二型機関短銃, Shisei-ni-gata kikan-tanjū) was a pre–World War II Japanese experimental submachine gun chambered in the 8mm Nambu round.
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Transcription
History
The Type 2 was a development of the earlier Type 1 submachine gun, designed in response to criticisms of the Type 1's awkward ergonomics. The Type 2 offered a more conventional magazine feed and stock, but wholly retained the Type 1's method of operation and was essentially the same gun in a different body. It was initially produced in the mid-1930s and was tested by the Imperial Japanese Army, but rejected. During World War II, an urgent demand for automatic infantry weapons saw the revival of several experimental weapon projects, including the Type 2 submachine gun. Blueprints of the weapon were sent to the Mukden Arsenal in Manchukuo in 1944 for use in development of cheap submachine guns. Instead, those blueprints were used by the Chinese communists to produce submachine guns to be used in the Chinese Civil War following the end of the war with Japan and communist control over Mukden. These weapons were operationally identical but chambered in .45 ACP rather than 8×22mm Nambu.[1] The British and US armies studied examples of the earlier Japanese prototypes obtained in Singapore and Japan after the surrender of Japan.[3]
Design details
The Type 2 was a blowback-operated submachine gun that fired from an open bolt. Much like the Type 1, the Type 2's return spring enveloped the barrel of the gun rather than behind the bolt. The front section of the receiver and barrel shroud would travel forward with the bolt upon firing and be pushed back by the return spring. The barrel stayed stationary. The cocking handle was not located in a slotted groove but instead took the form of a protruding tab fixed to the left side of the receiver. Early pre-war prototypes of the Type 2 were built with the same pneumatic buffer device seen on the Type 1, which cushioned the action of the gun and acted as a bolt delay. The timing of the delay could be adjusted by changing the air pressure exerted by the buffer, thus lowering or increasing the fire rate to either 500 or 600 rounds per minute, but the examples captured after the war had five buffer holes as settings.[4] This was done by turning a pressure valve located underneath the rear cap. The later wartime models omitted the air buffer feature in an attempt to cut production costs. The Type 2 was typically issued with 30-round magazines, although it could also use the same 50-round magazines as the Type 1.[5] Late-war examples of the Type 2 had bayonet fittings, a feature not present on the original production models. A spike bayonet was also designed for the gun but was not used on the production models. The finish of the late-war models was typically poor compared to the earlier pre-war prototypes.
1934 Model 2A
Version chambered in the more powerfull Type 95 6.5x30mm cartridge, it weighed 7-7,5 grams and generated muzzle velocities between 550-600 m/s resulting in muzzle energy between 1058.75-1350 J. [6][7][8][9]
1942 Model 2A
Version chambered in 8×22mm Nambu.[10][11]
See also
- List of submachine guns
- List of World War II infantry weapons
- List of Japanese military equipment of World War II
References
- ^ a b "Mukden Arsenal after WWII". 3 April 2017.
- ^ "Type II Model A". Dragons of Fire. Archived from the original on 2020-10-07. Retrieved 2009-04-02.
- ^ "C. I. S. A. Technical Report No. J-28 on 8 M/M Unknown Type Japanese Machine Carbine" (PDF). 8 April 1946.
- ^ "Japanese Model II Type A".
- ^ Illustrated Directory of 20th Century Guns, David Miller, 2002
- ^ "Nambu Type 2". firearms.96.lt. Archived from the original on 2024-02-13. Retrieved 2024-02-13.
- ^ "Упорство, достойное лучшего применения | Warspot.ru". 2019-08-12. Archived from the original on 2019-08-12. Retrieved 2024-02-13.
- ^ "Японские пистолеты-пулеметы Кидзиро Намбу". Archived from the original on 2024-02-14. Retrieved 2024-02-18.
{{cite web}}: CS1 maint: bot: original URL status unknown (link) - ^ "История развития пистолетов-пулеметов Японии. ч 1: lautlesen — LiveJournal". 2022-07-24. Archived from the original on 2022-07-24. Retrieved 2024-02-19.
- ^ "Japanese Model II Type A SMG". 2012-10-19. Archived from the original on 2012-10-19. Retrieved 2024-02-13.
- ^ (PDF) https://web.archive.org/web/20130317030354/http://www.forgottenweapons.com/wp-content/uploads/ModelIISMG/Japanese%208mm%20SMG%20report.PDF. Archived from the original (PDF) on 2013-03-17. Retrieved 2024-02-13.
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Further reading
- Chris Bishop et al. The Complete Encyclopedia of Weapons of World War II. Brown Books, 1998.
This page was last edited on 29 February 2024, at 14:35