Data Quality87%
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
GAU-19
Category
Country
Prime contractor
Production
1983–
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
HEAVY MACHINE GUNS (HMG) · COLD WAR
3
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 Year1983
- Service Entry Year1992
- DesignerGeneral Electric
- Weight (Empty)48 kg
- Currently In ServiceYes
- Notable UsersColombia, Czechia, Egypt, Iraq, Japan, Mexico, Oman, Saudi Arabia, Thailand, Turkey, UAE, United States
◈Cartridge & Calibre6MOD.6
- Cartridge.50 BMG (12.7×99mm NATO)
- Calibre12.7 mm
- Case Length99 mm
- Calibre Class.50
- RimfireNo
- Caseless AmmunitionNo
▣Operation6MOD.6
- Action TypeElectric-Driven Rotary
- Fire Modesselectable 1000/1300/2000 rpm
- Select FireYes
- Feed SystemBelt
- Cyclic Rate of Fire1,000
- Practical Rate of Fire1,300
◇Ballistics3MOD.3
- Muzzle Velocity887 m/s
- Effective Range (point)1,800 m
- Maximum Range6,000 m
◆Barrel & Sights1MOD.1
- Barrel Length914 mm
▤Construction2MOD.2
- Bullpup LayoutNo
- Modularitybarrel count 3 or 6, feed linkless or M9 belt
⬢Features2MOD.2
▲Production & Cost2MOD.2
- Production Start1983
- Variants2
◎Additional Dimensions2MOD.2
- Width343 mm
- Height381 mm
03 / History
SERVICE LIFESPANStill in Service
- 1983Production started
- 1985Entered service
43
years in service
11
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries11country
05 / MASS Score
HEAVY MACHINE GUNS (HMG) RANKING Heavy Machine Guns (HMG) · Cold War
MASS RANKINGSMASS ↗
9HEAVY MACHINE GUNS (HMG)3COLD WAR · HEAVY MACHINE GUNS (HMG)383UNITED STATES · ALL WEAPONS22PERFORMANCE/PRICE · HEAVY MACHINE GUNS (HMG)
ⓘ Rankings are within theHeavy Machine Guns (HMG)category.
📖 TERMS ON THIS PAGE3terms
A firearm feed system where ammunition is stored in a flexible or rigid container (magazine) inserted into the grip or attached externally, feeding rounds into the chamber via a spring or follower.
Firearm action where an electric motor cycles the slide or cylinder via a rotary mechanism, replacing manual operation.
Select fire is a fire selector mechanism on a firearm that lets the shooter choose the firing mode, such as semi‑automatic, burst, or fully automatic.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources