Data Quality85%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the heavy machine guns (hmg) category.
01 / Overview
Nkm wz.38 FK
Category
Country
Prime contractor
Production
1938–1939
Quantity
55
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
HEAVY MACHINE GUNS (HMG) · INTERWAR PERIOD
11
PERFORMANCE/PRICE
76
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the heavy machine guns (hmg) category, regardless of era.
02 / Specs & Design
◎General6MOD.6
- First Production Year1938
- Service Entry Year1939
- DesignerBolesław Jurek (Model A)
- Weight (Empty)57.6 kg
- Currently In ServiceYes
- Notable UsersPoland
◈Cartridge & Calibre7MOD.7
- Cartridge20x138mmB
- Calibre20 mm
- Case Length138 mm
- Calibre Class20mm
- Bullet Weight320 g
- RimfireNo
- Caseless AmmunitionNo
▣Operation7MOD.7
- Action TypeShort Recoil
- Fire Modessemi-automatic
- Select FireNo
- Feed SystemDrum
- Magazine Capacity10
- Drum / Belt Capacity100
- Cyclic Rate of Fire320
◇Ballistics3MOD.3
- Muzzle Velocity856 m/s
- Effective Range (point)5,000 m
- Effective Range (area)7,000 m
◆Barrel & Sights1MOD.1
- Barrel Length1,476 mm
▤Construction2MOD.2
⬢Features3MOD.3
▲Production & Cost4MOD.4
- Total Production55
- Production Start1938
- Production End1939
- Variants4
◎Additional Dimensions1MOD.1
- Width202.5 mm
03 / History
SERVICE LIFESPANRetired
- 1938Production started
- 1939First deployment: World War II
88
years in service
1
years in production
55
units produced
0
countries operating
ⓘ 1 countries retired it.
05 / MASS Score
HEAVY MACHINE GUNS (HMG) RANKING Heavy Machine Guns (HMG) · Interwar Period
MASS RANKINGSMASS ↗
40HEAVY MACHINE GUNS (HMG)11INTERWAR PERIOD · HEAVY MACHINE GUNS (HMG)123POLAND · ALL WEAPONS22PERFORMANCE/PRICE · HEAVY MACHINE GUNS (HMG)
ⓘ Rankings are within theHeavy Machine Guns (HMG)category.
📖 TERMS ON THIS PAGE2terms
A cylindrical ammunition container, typically mounted on a firearm, that holds cartridges in a spiral arrangement for feeding into the chamber.
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