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Type 94 Nambu pistol
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The Type 94 Nambu 8 mm pistol (Type 94 handgun, in Japanese: 九四式拳銃, romanized: Kyūyon-Shiki Kenjū) is a semiautomatic pistol developed by Kijirō Nambu and his associates for the Imperial Japanese Army. Development of the Type 94 pistol began in 1929, and after several redesigns the final prototype was tested and officially adopted by the Japanese army in late 1934 (Japanese calendar, 2594).[1] The Type 94 pistol entered production in 1935. Approximately 71,000 pistols were manufactured before production ended in 1945.
Key Information
The Type 94 pistol was designed for (and popular among) Japanese tank and aircraft crews who preferred a smaller, lightweight design. Japanese weapons experts have subsequently criticized some design elements of the Type 94; in particular the pistol can be fired unintentionally before the breech was fully locked if the sear bar on the side of the receiver is depressed while the pistol's safety is disengaged. Additionally, the process to disassemble the pistol is overly complex and awkward. The build quality of the Type 94 pistol declined over its production run; "last ditch" pistols made in 1945 were crudely manufactured.
History
[edit]The Type 94 Nambu pistol was designed by Kijiro Nambu after he retired from the Japanese army and founded the Nambu Rifle Manufacturing Company.[5] Design of the Type 94 Nambu pistol commenced in 1929 with the goal of reducing the bulk and price of previous Nambu designs.[3] The Imperial Japanese Army felt a smaller pistol of domestic design that could accommodate the standard 8×22mm Nambu cartridge was needed to substitute the larger, heavier, and only official military pistol, the Nambu pistol (Type 14).[5] The demand for officer's handguns had increased as a result of Japan's invasion of Manchuria during the Second Sino-Japanese War.[5] A new design was also wanted by the Japanese Army to include a magazine safety, to prevent unintentional discharges during cleaning that were common among Japanese personnel.[5] Naming of the Type 94 pistol reflects the change in Japanese nomenclature with the 94 reckoning back to the mythical foundation of Japan in 660 BC, therefore year 2594 instead of the traditional emperor reign period used to name the Type 26 revolver or Type 14 Nambu pistol.[6] The final prototype for the Type 94 was officially adopted by the Japanese Army in late 1934 after several redesigns.[1] Production began under the supervision of the Nagoya Army Arsenal at the Nambu Rifle Manufacturing Company and later its successor, Chuo Kogyo Company, Ltd.[1] Priced at 73 yen per unit,[7] an estimated 71,000 pistols were produced for the military but the exact quantity is unknown because of the production of unserialized pistols and undated pistols.[1] During World War II the pistol became a preferred weapon for tank crews and paratroopers who required a smaller, more convenient pistol.[5] The Type 94 was never officially adopted by the Imperial Japanese Navy but was available to officers through the Japanese officers' union.[1]
Design
[edit]
The Type 94 pistol is operated by a different mechanism than previous Japanese sidearms.[8] Unlike previously designed Nambu pistols, the Type 94 operates with a concealed hammer and with a firing pin rather than a striker.[1] According to authors, Harry L. Derby and James D. Brown, the firing pin is inherently weak and is prone to breakage because of a recess cut provided for the crossbolt and is prone to breaking at this point.[1] The sturdier hammer firing mechanism was developed and included in the Type 94 to replace the poor striker on the Type 14 Nambu.[6] The locking system is a rising-block type which floats independently between the lugs underneath the chamber end of the barrel.[8] The single coil mainspring is positioned around the barrel instead of to the rear of the barrel as found on other Nambu pistols.[8] The grip is smaller than other Japanese pistols and is finished with either black bakelite or smooth wood, depending on production date.[9] According to author Jeff Kinard, these smaller grips are more comfortable for use by men with smaller hands.[10] The magazine holds a maximum of six rounds because of the smaller grip[6] and it is considered difficult to reload the weapon, with pressure from the bolt holding it inside the pistol.[1] The magazine catch protrudes far enough to occasionally disengage when the pistol is placed on its left side on a hard surface.[1] The magazine could also disengage if squeezed into or jarred in a holster.[1] The manual safety lever is located on the left rear of the frame and has the kanji for "fire" and "safe" stamped onto the frame.[1] The front blade sight on the muzzle of the Type 94 pistol and the rear fixed V were occasionally inaccurately positioned making them useless when the weapon is being aimed.[4] The rear sight was reduced from a U-shape to a simple notch in 1944 with the front blade being left unchanged but less attention to detail being applied as World War II progressed.[11]
Final production
[edit]The quality of Type 94 Nambu pistols decreased towards the end of World War II as the Japanese faced bombing raids from Allied forces and material shortages increased.[12] This drastic change in quality from late March 1945, onwards with all quality standards appearing to disappear towards the end of June 1945.[13] As bakelite became increasingly unavailable, the earlier bakelite grips were replaced with smooth wooden grips, often called "slab" grips.[9] Many pistols were not serialized and no pistols have been reported that bear July 1945 manufacture date.[13] Only four unserialized and undated pistols are known to exist and include mismatched parts with no inspection marks, lanyard loops, and extractors.[14] A small number of pistols made during the final production stages include earlier production dates and appear to have been salvaged from previously discarded pistols that had minor or cosmetic defects.[14]
Disassembly
[edit]Disassembly of the Type 94 Nambu pistol is considered difficult and can lead to damage to the pistol if done carelessly.[2] After clearing the Type 94, the operator must draw the slide against the magazine follower to hold the bolt to the rear of the pistol.[2] This allows the crossbolt to be released after the firing pin is depressed.[2] Removal of the crossbolt without depressing the firing pin will damage both the firing pin and the crossbolt.[15] Removing the crossbolt is further complicated as the disassembler's hands are both holding the pistol and depressing the firing pin.[15]
Holster
[edit]Holsters for the Type 94 pistol were generally made from either pigskin or cowhide leather and ranged in color from tan to dark reddish brown.[16] Holsters faced the same degradation in quality as the Type 94 pistol.[16] As supplies of leather were exhausted in Japan, holsters manufactured in 1944 became fabricated from olive drab fabric.[16] The Type 94 pistol holster is distinguishable from other Japanese holsters having a pointed closure flap and a vertically positioned magazine pouch.[17] The pouch tow has a narrow extension to accommodate a cleaning rod.[16] The majority of holsters were made in civilian owned tanneries with some ink stamped with arsenal and inspection marks.[18] A belt loop and two shoulder strap "D" rings are provided on the rear of the holster and are made from brass, galvanized steel, or nickel plating.[16]
Unintentional firing
[edit]The design of the breech allows the Type 94 Nambu to be fired unintentionally.[3] The sear bar on the Type 94 Nambu converts the forward pull of the trigger into a lateral movement that frees the hammer.[19] Because the sear bar is on the outside of the pistol,[19] it can be accidentally discharged if the pistol is cocked and handled carelessly.[6] The forward end of the sear bar needs to be depressed approximately 2 mm (0.079 in) to cause the weapon to fire.[5] However the sear bar cannot be depressed to cause an unintentional discharge while the safety is engaged. The ability to fire the Type 94 without pulling the trigger gave rise to war stories of Japanese soldiers surrendering, only to fire the pistol, earning the pistol monikers such as the "suicide special" and the "surrender pistol".[5] These stories are widely discredited because of the difficulty to fire the weapon by squeezing the sear bar.[5] Jonathan Ferguson adds that a soldier feigning surrender would need to hold the gun in a conspicuous way.[20] If the safety is engaged on the Type 94 it is impossible for the weapon to discharge unintentionally.[1]
Notes
[edit]- ^ a b c d e f g h i j k l m Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 191
- ^ a b c d e f g h Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 193
- ^ a b c d Hogg, Ian, Military Small Arms of the 20th Century, 7th Edition, (2000) p. 67
- ^ a b Miller, David. Fighting Men of World War II Axis Forces Uniforms, Equipment, and Weapons (2010), p. 277
- ^ a b c d e f g h Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 189
- ^ a b c d Hogg, Ian, Pistols of the World, 4th Edition, (2004) p. 234
- ^ "兵器臨時定価、予価、表送付の件 Military catalogue of the Japanese military". National Archives of Japan. August 1939.
- ^ a b c Skennerton, Ian, Japanese Service Pistols Handbook (2008) p. 22
- ^ a b Derby, HarryL. Japanese Military Cartridge Handguns 1893-1945 (2003) p. 196
- ^ Kinard, Jeff. Pistols: An Illustrated History of Their Impact (2003), p. 247
- ^ Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 207
- ^ Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 219
- ^ a b Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 220
- ^ a b Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 221
- ^ a b Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 194
- ^ a b c d e Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 225
- ^ Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 224
- ^ Derby, Harry L. Japanese Military Cartridge Handguns 1893–1945 (2003), p. 226
- ^ a b Skennerton, Ian, Japanese Service Pistols Handbook (2008) p. 23
- ^ Ferguson, Jonathan (12 August 2025). "Most Useless Guns of WWII — So Bad They Were a Threat to Their Own Troops". BFBS Forces News. YouTube. Retrieved 21 August 2025.
References
[edit]- Derby, Harry L.; Brown, James D. (2003). Japanese Military Cartridge Handguns 1893–1945. Atglen, Philadelphia: Schiffer Publishing. ISBN 0-7643-1780-6.
- Hogg, Ian; Weeks, John (2000). Military Small Arms of the 20th Century (7th ed.). Iola, Wisconsin: Krause Publications. ISBN 0-87341-824-7.
- Hogg, Ian; Walter, John (2004). Pistols of the World (4th ed.). Iola, Wisconsin: Krause Publications. ISBN 0-87349-460-1.
- Kinard, Jeff (2003). Pistols: An Illustrated History of Their Impact. Santa Barbara, California: ABC-CLIO. ISBN 1-85109-470-9.
- Miller, David (2010). Fighting Men of World War II Axis Forces Uniforms, Equipment, and Weapons. New York City: Chartwell Book INC. ISBN 978-0-7858-2815-0.
- Skennerton, Ian (2008). Japanese Service Pistols. Labrador, Queensland: Arms and Militaria Press. ISBN 978-0-949749-88-8.
Type 94 Nambu pistol
View on GrokipediaDevelopment and history
Design origins
The Type 94 Nambu pistol was designed by Kijirō Nambu, a renowned Imperial Japanese Army officer and firearms engineer who had previously led the development of several influential handguns.[4] Nambu's earlier works included the Baby Nambu, a compact 7mm pistol introduced in the early 1920s as a scaled-down version of his Type A design, and the Type 14 Nambu, a 8mm semi-automatic pistol adopted by the army in 1925 to replace older revolvers.[5][6] These designs established Nambu as Japan's leading small arms innovator, often compared to John Browning for his prolific output during the interwar period.[7] Development of the Type 94 began in 1929, initiated as a response to the Imperial Japanese Army's (IJA) need for a more compact and affordable sidearm compared to the full-sized Type 14.[1] The project aimed to create a lightweight pistol suitable for officers, pilots, and tank crews, who required a weapon that could be easily carried in confined spaces without sacrificing essential functionality.[8] This effort was influenced by emerging commercial trends in Europe and the United States toward smaller, officer-oriented pistols, such as the Mauser C96 variants and Colt pocket models, which emphasized portability over heavy firepower.[2] The IJA's requirements further shaped the design, prioritizing a locked-breech mechanism in 8mm caliber to align with existing ammunition supplies while reducing overall size and cost for non-infantry specialists.[1] Initial prototypes underwent extensive testing and refinement throughout the early 1930s, addressing issues with reliability and ergonomics to meet stringent IJA standards.[1] These trials revealed challenges in the recoil-operated system and trigger mechanism, leading to iterative improvements before the design was deemed satisfactory.[9] The pistol's development culminated in its finalization and official designation as the "94 Shiki Kenju" in late 1934, corresponding to the Japanese imperial year 2594.[10]Adoption and production
The Type 94 Nambu pistol was officially adopted by the Imperial Japanese Army in 1934 as a compact sidearm to supplement the larger Type 14 pistol.[10] Production began the following year in 1935 at the Kokubunji plant of the Nambu Rifle Manufacturing Company (later known as Chuo Kogyo Co., Ltd.), which served as the sole manufacturer throughout the pistol's run.[10][11] An estimated 71,000 units were produced between 1935 and 1945, with output remaining relatively steady during the early and mid-war years before declining sharply in 1945 due to material shortages and Allied bombing campaigns disrupting Japanese industry.[10][11] The allocated production cost per unit was 80 yen, reflecting efforts to make the design more economical than earlier Nambu pistols while maintaining military specifications.[12] Due to its smaller size and lighter weight compared to the standard-issue Type 14, the Type 94 was primarily allocated to officers, tank crews, pilots, and paratroopers, where space constraints in aircraft, vehicles, and parachutes favored a more compact firearm.[10][2] This allocation helped address the need for reliable personal defense weapons in specialized roles without overhauling the broader army inventory.[11]Design features
Mechanism and operation
The Type 94 Nambu pistol operates on a semi-automatic short-recoil principle, in which the barrel and slide recoil together for a short distance before unlocking to allow the slide to cycle and eject the spent cartridge.[13] The locking system utilizes a rising-block design, where a vertically sliding block positioned below the barrel engages lugs on the underside of the slide when in battery position.[13] This block rises via interaction with a sloped surface in the frame during the forward motion, securing the breech, and drops during recoil to permit the slide's rearward travel.[13] The recoil spring, located around the barrel, returns the slide to battery after extracting and ejecting the casing, chambering a new round from the magazine.[14] The firing mechanism incorporates a concealed internal hammer that strikes a firing pin to ignite the primer, an improvement over the fragile striker system of earlier Nambu designs.[2] The firing pin is driven forward by the hammer upon trigger pull, providing reliable ignition for the 8x22mm Nambu cartridge.[2] A thumb-operated safety lever on the left side of the frame, positioned above the grip, locks the sear to prevent hammer release when engaged.[15] This safety enhances control but requires deliberate manipulation due to its placement.[15] To load the pistol, a 6-round single-stack box magazine is inserted upward into the grip from the bottom, secured by a release at the base of the trigger guard.[13] The operator then retracts the slide to chamber the first round, disengages the safety, aims using the fixed sights, and pulls the trigger to release the sear, allowing the hammer to fall and strike the firing pin for discharge.[14] Each shot recoils the slide to repeat the cycle automatically until the magazine is empty.[13]Specifications
The Type 94 Nambu pistol, a semi-automatic handgun designed for the Imperial Japanese Army, features the following key technical specifications for its standard model.[1]| Specification | Details |
|---|---|
| Caliber | 8×22mm Nambu cartridge; muzzle velocity approximately 305 m/s, effective range ~50 meters.[1][16] |
| Capacity | 6+1 rounds (6-round detachable box magazine plus one in the chamber).[1] |
| Dimensions | Overall length: 187 mm; barrel length: 96 mm; height: 122 mm.[1][17] |
| Weight | 765 grams (unloaded).[1] |
| Materials | Machined steel frame and slide; bakelite or wood grips (early models used wood, late-war shifted to crude plastic due to material shortages); fixed iron sights (front blade and rear V-notch).[1][18] |
| Feed system | Detachable single-stack box magazine inserted into the grip.[1] |
