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Kongsberg Defence & Aerospace

Protector RWS (RS4)

The world's most widely fielded remote weapon station (over 20,000 delivered), supporting 5.56mm to 12.7mm weapons and 40mm grenade launchers with stabilized fire on the move.

28 operator countries

Compiled from public sources ·primary reference ↗

Data confidence Last verified 2026-07-04 ·
Stub · 7%

Procurement snapshot

Availability & export

National export licensing

Subject to Norway export-control approval; verify eligibility with the manufacturer.

Channel: Direct commercial / G2G

Fielded & proven

Widely fielded · 28 operators

Status: active · ~24,000 built.

Lifecycle cost (est.)

No public unit price to model from. Why so few systems publish one →

Interoperability

No standardised NATO calibre / datalink detected in public specs.

Competitive field

41 comparable systems from 25 other manufacturers

Counted in the WeaponSpecs database: systems in its class built by another manufacturer. A count of what this catalog holds, not a survey of the whole market. See the alternatives →

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.

Compatible munitions & weapons

Publicly reported weapons the Protector RWS (RS4) can carry. Linked items have a full spec page.

5.56 mm machine gun 7.62 mm machine gun 12.7 mm machine gun 40 mm automatic grenade launcher anti-tank guided missile (optional) coaxial machine gun (optional)

Full specifications

Physical

Dimensions, weight and crew.

Physical specifications
Length

Overall length including gun/probe where applicable.

0.96 m
Width

Overall width, matters for rail/road transport of vehicles.

0.89 m
Height

Overall height. Lower profile is harder to spot and hit for ground vehicles.

0.83 m
Combat weight

Fully loaded weight. Lighter eases transport and bridging limits; heavier often means more armor.

135 kg

Sensors & avionics

Radar, sensor suite and datalinks.

Sensors & avionics specifications
Sensors

IRST, EO/IR turrets, laser designators, sniper pods, thermal sights.

High-resolution day camera, Thermal imager, Laser rangefinder
Thermal imaging

Thermal sights for night and obscured-visibility operations.

Yes

Program

Cost, production scale and operators.

Program specifications
Units built

Total production run. Higher means proven manufacturing, mature logistics and spares availability.

24,000
Stronger than 77% of systems in its class
Operator countries

Number of countries operating the system. More operators means broader support ecosystem.

28
Stronger than 85% of systems in its class

Specifications compiled from public Kongsberg Defence & Aerospace and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-07-04.

Compare with rivals

See how it stacks up

Frequently asked questions

How much does the Kongsberg Defence & Aerospace Protector RWS (RS4) weigh? +

The Kongsberg Defence & Aerospace Protector RWS (RS4) has a combat weight of 135 kg.

How many countries operate the Kongsberg Defence & Aerospace Protector RWS (RS4)? +

The Kongsberg Defence & Aerospace Protector RWS (RS4) is operated by 28 countries.

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