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New Nambu M57
Photo: Dragoner JP · Wikimedia Commons · CC BY-SA 4.0
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NewNambuM57

Pistols · Japan · 1957
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NewNambuM57

New Nambu M57
New Nambu M57 Photo: Dragoner JP · Wikimedia Commons · CC BY-SA 4.0
* Absolute score — assessed within category · no era adjustment
Stopping Power
60
Accuracy
65
Magazine Capacity
50
Reliability
70
Concealability
55
Ergonomics
60
Recoil Control
65
Maintenance Ease
75
Modularity
30
Cost-Effectiveness
70
Origin Japan
CategoryPistols
EraEarly Cold War
In service1957
Operators1 countries
Data Quality84%
MASS(Military Archive Scoring System)
61
Pistols MASS Rating
12/31
Early Cold War
317/572
All-Time
Pistols · 10 axes scored
Stopping Power
60
Accuracy
65
Magazine Capacity
50
Reliability
70
Concealability
55
Ergonomics
60
Recoil Control
65
Maintenance Ease
75
Modularity
30
Cost-Effectiveness
70
ⓘ Regardless of era, the same scoring system applies to all units in the pistols category.
01 / Overview
New Nambu M57
Category
Country
Production
1957–
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
PISTOLS · EARLY COLD WAR
12
PERFORMANCE/PRICE
75
UNIT COST (2025 USD)
—
61
pistols category
ⓘ Performance/Price and MASS score are computed across all units in the pistols category, regardless of era.
02 / Specs & Design
◎General5MOD.5
  • First Production Year1957
  • DesignerShin-Chuō Industries
  • Weight (Empty)0.96 kg
  • Currently In ServiceNo
  • Notable UsersJapan Self-Defense Forces, Japan Coast Guard
◈Cartridge & Calibre7MOD.7
  • Cartridge* 9×19mm Parabellum (M57A/A1) * .32 ACP (M57B)
  • Calibre9 mm
  • Case Length19 mm
  • Calibre Class9mm
  • Bullet Weight7.45 g
  • RimfireNo
  • Caseless AmmunitionNo
▣Operation6MOD.6
◇Ballistics1MOD.1
  • Effective Range (point)50 m
◆Barrel & Sights4MOD.4
▤Construction4MOD.4
▲Production & Cost2MOD.2
  • Production Start1957
  • Variants3
03 / History
SERVICE LIFESPANRetired
  1. 1957Production started
69
years in service
0
countries operating
ⓘ 1 countries retired it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE3terms
A firearm feed system where ammunition is stored in a separate container (magazine) that can be removed and replaced, enabling rapid reloading.
Adjustable metal aiming devices on firearms, consisting of a front post and rear notch, used without magnification.
Short recoil is a firearm operating mechanism where the barrel and slide move together for a short distance after firing, then separate to complete extraction, ejection, and chambering.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Pistols entry →