Nambu Type 14
Nambu Rifle Manufacturing Company · Pistol · Discontinued · 1925
Also known as: Type 14, Taisho 14, Jūyon-nen-shiki kenjū, Grandpa Nambu (early), Papa Nambu (for the earlier Type A), 14 Nen Shiki Kenju
Overview
The Nambu Type 14 (十四年式拳銃, Jūyon-nen-shiki kenjū) is a Japanese semi-automatic pistol designed by Lieutenant General Kijiro Nambu and adopted in 1925 (the 14th year of the Taisho era, hence the designation). A short-recoil, locked-breech, striker-fired pistol chambered in the underpowered 8x22mm Nambu cartridge, it served as the standard sidearm of the Imperial Japanese Army through the Second Sino-Japanese War and throughout the Pacific Theater of World War II. The Type 14 was a simplified and cost-reduced evolution of Nambu's earlier Type A (Grandpa/Papa Nambu) designs, removing the grip safety while retaining the distinctive Luger-esque silhouette and Mauser C96-inspired internals. Its tilting locking block engages the bolt during short recoil, while twin symmetrically-positioned recoil springs flank the bolt. Production was carried out primarily at Nagoya Arsenal and Kokura Arsenal (and from 1936 at the Nambu Rifle Manufacturing Company, which later became Chuo Kogyo), with approximately 400,000 pistols produced between 1925 and 1945. Although mechanically interesting and well-finished in its early years, the Type 14 gained a reputation for unreliability due to a weak striker spring prone to misfires, finicky magazines that could drop free or fail to seat, and a cartridge with muzzle energy roughly half that of the 9x19mm Parabellum. Late-war examples produced after 1940 adopted an enlarged trigger guard (sometimes called the 'Kiska' variant) to accommodate gloved hands in winter conditions, and an added magazine retention spring on the front grip strap.
Specifications
| Weight (empty) | 900 g (31.7 oz) |
| Weight (loaded) | 985 g (34.7 oz) |
| Overall Length | 230 mm (9.06") |
| Barrel Length | 117 mm (4.61") |
| Height | 153 mm (6.02") |
| Width | 40 mm (1.57") |
| Sight Radius | 175 mm (6.89") |
| Action Type | Short Recoil |
| Firing Mechanism | Striker Fired |
| Trigger Type | Single Action |
| Magazine Capacity | 8 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 325 m/s (1066 fps) |
| Muzzle Energy | 325 J (240 ft·lbf) |
| Effective Range | 50 m (55 yd) |
| Barrel Rifling | Right Hand |
| Number of Grooves | 6 |
| Frame Material | Steel |
| Barrel Material | Steel |
| Stock Material | Wood |
| Finish | Blued |
Calibers
- 8x22mm Nambu · primary — also known as 8mm Nambu, 8mm Japanese, 8x22mm
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Manual Safety
- Features: Locked Breech, Tilting Locking Block, Dual Recoil Springs, Knurled Cocking Knob, Removable Trigger Guard, Fixed Sights, Belt Loop, Serrated Wood Grips, Enlarged Trigger Guard Late Model, Magazine Retention Spring Late Model
Variants
- Nambu Type 14 Early (Small Trigger Guard) — Early Production
- Nambu Type 14 Kiska (Enlarged Trigger Guard) — Winter Trigger Guard
- Nambu Type 14 Late War — Simplified Wartime
Service history
Operators
- Imperial Japanese Army · adopted 1927 · as Type 14 Nambu
- Imperial Japanese Navy
- Manchukuo Imperial Army
- Collaborationist Chinese Army
- Royal Thai Army
- Indonesian National Armed Forces · adopted 1945
Conflicts
- Second Sino-Japanese War (1937-1945)
- World War II (1939-1945)
- Pacific War (1941-1945)
- Soviet-Japanese War (1945-1945)
- Indonesian National Revolution (1945-1949)
Production
Estimated total produced: 400,000 · Production years: 1925-1945
Approximately 400,000 Type 14 pistols produced between 1925 and 1945. Primary production at Nagoya Arsenal, with earliest examples from Kokura Arsenal (1925-1926) and later production at the Nambu Rifle Manufacturing Company (Chuo Kogyo). Some sources cite production as low as 200,000-320,000 units; the higher figure includes all arsenal and contractor output through late-war production.
Origin
Country of origin: Japan
Designer: Kijiro Nambu
Discontinued: 1945
Notes
The Type 14 was adopted three years after its 1925 introduction as the official sidearm for non-commissioned officers in 1927; commissioned officers were required to purchase their own pistols privately and often chose the Type 14. The designation comes from the 14th year of the reign of Emperor Taisho. Production occurred at multiple Japanese arsenals: Nagoya Arsenal was the primary producer, with Kokura Arsenal producing the earliest pistols in 1925-1926, and the Nambu Rifle Manufacturing Company (Nambu-Ju-Seizosho) handling private production from 1928 onward. Type 14 pistols are stamped with production month and Showa-era year of manufacture (e.g., 17.8 = August 1942). Early pistols featured slotted cocking knobs and 25-line serrated beech grips; later production used knurled knobs and Philippine mahogany grips, while late-war 'slab' grips (from November 1944) were ungrooved. The pistol lacks a grip safety that was present on earlier Type A and B Nambus. The 8x22mm Nambu cartridge is a bottlenecked, rimless round unique to Japanese service arms and the Type 100 submachine gun. Many Type 14 pistols were captured by Allied forces as war trophies in the Pacific and remain prized collector items. Some Type 14s saw post-war use by Indonesian forces during the Indonesian National Revolution against Dutch colonial rule.
Background
Designed by Kijiro Nambu -- often called 'the Japanese John Browning' -- the Type 14's silhouette was visibly inspired by the German Luger P08, earning it a superficial resemblance that belied vastly different internals and far inferior performance. The pistol was infamous for a weak striker spring that caused frequent misfires, particularly in cold or humid Pacific jungle conditions, and for magazines that could fall free at inopportune moments -- a flaw later addressed with a retention spring. Despite its mechanical quirks, the Type 14 remains one of the most iconic and widely collected war-trophy pistols of World War II.