Documents
Germany Heckler & Koch
HK433
A modular gas-piston rifle combining design elements of the G36, HK416 and HK MR223, offered as a replacement candidate for aging G36 fleets. It features a fully ambidextrous design with a monolithic upper receiver rail.
In service since 2017 · 1 operator countries
Compiled from public sources ·primary reference ↗ ·last verified 2026-07-02
500
m range
750
rpm
920
m/s
30
rds
Procurement snapshot
Availability & export
German export-licensed
BAFA licensing with strict end-use review; approvals can be politically constrained.
Channel: Direct commercial / G2G
Fielded & proven
Limited · 1 operator
In service since 2017. Status: active.
Lifecycle cost (est.)
No public unit price to model from. Why so few systems publish one →
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. | 500 m |
|---|---|
| Rate of fire Rounds per minute (cyclic). Higher increases suppression and hit probability. | 750 rpm |
| Muzzle velocity Projectile speed leaving the barrel. Higher means flatter trajectory and better armor penetration. | 920 m/s |
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. | 30 |
Physical
Dimensions, weight and crew.
| Length Overall length including gun/probe where applicable. | 0.92 m |
|---|---|
| Empty weight Weight without fuel, ammunition or crew. | 3 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. | 368 mm |
Munition
Round type, penetration, velocity and projectile data.
| Caliber Bore diameter the round is fired from. | 6 mm |
|---|
Program
Cost, production scale and operators.
| Operator countries Number of countries operating the system. More operators means broader support ecosystem. | 1 |
|---|
Specifications compiled from public Heckler & Koch and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-07-02.
Compare with rivals
See how it stacks up
Tula Arms Plant AEK-971 Frequently asked questions
How many crew does the Heckler & Koch HK433 require? +
The Heckler & Koch HK433 requires a crew of 1.
What is the main armament of the Heckler & Koch HK433? +
The Heckler & Koch HK433's primary weapon is the 5.56×45 mm NATO.
What is the Heckler & Koch HK433 used for? +
The Heckler & Koch HK433 is a rifle & long arms typically used for infantry combat.
How many countries operate the Heckler & Koch HK433? +
The Heckler & Koch HK433 is operated by 1 countries.
