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Belgium FN Herstal
M249 SAW
A gas-operated, belt-fed light machine gun adopted by the U.S. military as the Squad Automatic Weapon, based on FN's Minimi design and chambered in 5.56×45mm NATO. It provides infantry squads with sustained suppressive fire and is used by more than 75 countries.
In service since 1984 · 75 operator countries
Compiled from public sources ·primary reference ↗ ·last verified 2026-07-02
800
m range
850
rpm
915
m/s
200
rds
💲 ≈ $4,000 — Approximate U.S. military unit procurement cost
Procurement snapshot
Availability & export
National export licensing
Subject to Belgium export-control approval; verify eligibility with the manufacturer.
Channel: Direct commercial / G2G
Fielded & proven
Widely fielded · 75 operators
In service since 1984. Status: active · ~300,000 built.
Lifecycle cost (est.)
Unit cost known; one-shot / small-arms class has no meaningful O&S tail to model.
Interoperability
Derived guidance from public data — export regime by country of origin, lifecycle from the GAO ~30% acquisition rule. Verify eligibility, pricing and offsets with the manufacturer and your acquisition authority.
Full specifications
Performance
Speed, range, altitude and engagement capability.
- Effective range
Distance at which the weapon reliably hits point targets. Higher extends engagement envelope.
- 800 m Stronger than 84% of rifles
- Rate of fire
Rounds per minute (cyclic). Higher increases suppression and hit probability.
- 850 rpm Stronger than 82% of rifles
- Muzzle velocity
Projectile speed leaving the barrel. Higher means flatter trajectory and better armor penetration.
- 915 m/s Stronger than 68% of rifles
Firepower
Armament, payload and guidance.
- Main armament
Primary weapon: main gun, cannon or missile type.
- 5.56×45 mm NATO
- Caliber
Bore diameter of the main gun or rifle. Larger throws heavier projectiles; not simply better — ammunition commonality matters.
- 5.6 mm
- Ammunition
Rounds carried (main gun) or standard magazine capacity.
- 200 Top 1% of rifles
Physical
Dimensions, weight and crew.
- Length
Overall length including gun/probe where applicable.
- 1.04 m
- Empty weight
Weight without fuel, ammunition or crew.
- 8 kg
- Crew
Personnel required to operate. Fewer reduces exposure; autoloaders trade a loader for mechanical complexity.
- 1
- Barrel length
Barrel length — longer improves muzzle velocity and accuracy, shorter improves handling.
- 465 mm
Program
Cost, production scale and operators.
- Unit cost
Approximate flyaway/unit cost where public. Defense pricing varies hugely by contract, offsets and configuration. Lower is cheaper.
- $4,000 Stronger than 31% of rifles
- Units built
Total production run. Higher means proven manufacturing, mature logistics and spares availability.
- 300,000 Stronger than 47% of rifles
- Operator countries
Number of countries operating the system. More operators means broader support ecosystem.
- 75 Top 8% of rifles
Specifications compiled from public FN Herstal and reference sources ↗. Published defense figures are approximations — treat comparisons as directional. Last verified 2026-07-02.
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Tula Arms Plant AEK-971 Frequently asked questions
How many crew does the FN Herstal M249 SAW require? +
The FN Herstal M249 SAW requires a crew of 1.
What is the main armament of the FN Herstal M249 SAW? +
The FN Herstal M249 SAW's primary weapon is the 5.56×45 mm NATO.
What is the FN Herstal M249 SAW used for? +
The FN Herstal M249 SAW is a rifle & long arms typically used for infantry combat.
How many countries operate the FN Herstal M249 SAW? +
The FN Herstal M249 SAW is operated by 75 countries.
How much does the FN Herstal M249 SAW cost? +
The FN Herstal M249 SAW has an approximate unit cost of 4,000 USD. Defense pricing varies by contract, offsets and configuration — treat this as directional.
