Protector RWS
Remotely controlled weapons system
The Protector RWS is a remotely controlled weapons station (RWS) that can be mounted to vehicles and stationary platforms. It has been in full scale production since December 2001. It is manufactured by Kongsberg Defence & Aerospace of Norway.
01Design
The system consists of a stabilized firing platform, a fire-control system and control grips. Several weapons can be mounted to the platform, such as:
- M2 Browning 12.7×99 .50 BMG heavy machine gun
- NSV 12.7×108 heavy machine gun
- M240/FN MAG 7.62×51mm NATO general-purpose machine gun
- M249/FN Minimi 5.56×45mm NATO light machine gun
- MK19 40×53 mm automatic grenade launcher
- H&K GMG 40×53 mm automatic grenade launcher
- XM307 Advanced Crew Served Weapon
- Javelin anti-tank guided missile
- Hellfire anti-tank guided missile (from a modified Protector)

02Versions
Several versions of Protector have been developed with more than 20,000 units sold around the world in service with 23 countries. Between the M151 and M153 variants Kongsberg has delivered more than 18,000 systems to the U.S. Armed Forces. These systems are in-service within every branch of the U.S. military and many US agencies.
Overview
The Protector family includes the RS2, RS4 and RS6 Remote Weapon Stations, with weapons from light machine guns (5.56 mm) to light cannons (30×113mmB M230LF cannon). It also includes the Remote Turrets, designed for medium caliber cannons like 30×173mm and 40×180mm (Mk44 Bushmaster II).
| Name | Former name / version / program |
|---|---|
| RS2 | Protector Lite, Protector Super Lite |
| RS4 | M151, M153 (CROWS), Protector nordic |
| RS4 low profile | RWS Low profile, M153 (CROWS) |
| RS4 naval | RWS naval, Sea Protector |
| RS6 | RWS LW30, M153 (CROWS) |
| RT20 | MCT-30 (Medium Caliber Turret 30 mm), Protector Medium Caliber RWS |
| RT40 | MCT-30 (Medium Caliber Turret 30 mm) Protector Medium Caliber RWS |
| RT60 | MCT-40 (Medium Caliber Turret 40 mm) Protector Medium Caliber RWS |
M151 versions
- M151 Protector, deployed with the first Stryker brigades
- M151 E1 (Block 1), includes improved thermal cameras
- M151 E2 (Block 2), stabilized version
- Several country specific adaptations
- Weight (kg): 135
- Height (mm): 749
- Operating temperature (in °Celsius): −46 to +65
- Storage temperature (in °Celsius): −51 to +71
The system also features 4 M6 Smoke Grenade Dischargers. Specifications (excluding weapons and ammo):
M153 Protector
M153 Protector is designed to meet CROWS II requirement. Specifications (excluding weapons and ammo):
- Weight (kg): 172
- Height (mm): 762
- Operating temperature (in °Celsius): −46 to +65
- Storage temperature (in °Celsius): −51 to +71
Other variants
- Protector Lite
- Protector Lite is a lightweight version for 7.62 mm machine gun with 200 rounds of ammunition carried.
- Protector Super Lite
- Protector Super Lite is the lightest version currently available, and is a lightweight (30 kg), man-portable system that can be operated both remotely and manually. The Super Lite is fully stabilized and adaptable to any wheeled, tracked or stabilized platform, including tripods.
- Protector Medium Caliber RWS
- Protector Medium Caliber RWS is designed as a vehicle turret for 20 to 50 mm autocannons, with coaxial machinegun of 5.56 to 7.62 mm. Specifications (including weapons and ammo):
- Sea Protector
- Sea Protector is developed for naval applications.
- In operation, maximum azimuth slew rate >100°/s, with maximum elevation slew Rate >50°/s. Range of Elevation −20° to +60°
- Protector Dual RWS
Protector Dual RWS mounts two weapons. It provides a dual user functionality (Gunner / Commander). The coaxial weapon is mounted on the same axis as the main gun.
- Protector with Non Lethal Effectors
- Protector with Non Lethal Effectors is designed to close a capability gap in peacekeeping, peace enforcement and humanitarian operations as well as today's asymmetric warfare.
- Protector Nordic
- Protector Nordic is claimed by the Norwegian remote weapon station developer as the most technically advanced Protector RWS ordered to date, and is a key element in the foundation for cooperation in the Nordic material programs. The extended functionality includes the Day Camera VIS 95 with 95 field of view and the Infrared Aim Laser (850 nm), both developed by Kongsberg.
- Protector NM221
- Protector NM221 includes internal ammunition feed.

03Users
- Argentina, Stryker
- Australia, ASLAV PC vehicle
- Canada, Originally installed on the RG-31 fleet in Afghanistan. These were later upgraded and fitted on Leopard 2 support variants (ARV and AEV). Later, 364 procured for TAPV fleet. Additional units are on order for integration on the ACSV fleet, with deliveries starting in late 2020.
- Croatia, Patria AMV, 175
- Czech Republic, LMV
- Denmark, Used on Piranha V vehicles.
- Estonia, CV90 family
- Finland, Patria AMV vehicle
- France, Renault VAB
- India, TATA Kestrel
- Indonesia, KMC Komando Fast Assault Craft & KMC-38M Patrol Vessel (Sea Protector Mk50)
- Ireland, Mowag Piranha IIIH CRV and RG-32M LTV
- Japan, Currently only a few for testing
- Kuwait, VBL Mk 2
- Lithuania, used on Joint Light Tactical Vehicles.
- Luxembourg, Dingo 2 vehicle
- Netherlands, Boxer vehicle
- North Macedonia, Unknown
- Norway, CV90 family (Protector Nordic), NM205F3 APC (Protector NM221), Iveco LMV (Protector Lite), Fridtjof Nansen-class frigate (Sea Protector), HNoMS Maud and Skjold-class corvette (Sea Protector)
- Portugal, Pandur II
- Qatar, to be used on 490 VCBI IFVs.
- Romania, Unknown
- Slovenia, Patria AMV
- Switzerland, Piranha I vehicle cdmt, Mowag Duro IIIP and canot-patrouilleur 16
- Sweden, Sisu Pasi, Patria AMV, Archer Artillery System, RG-32M
- Thailand, Stryker
- Taiwan, Unknown
- Ukraine - Stryker,Sargan 3000
- United Kingdom, used on Mastiff vehicles in Iraq and Afghanistan, Ajax family of vehicles
- United States, Stryker, M1A2 Abrams, and numerous other vehicles. Protector RWS made by Kongsberg Protech Systems USA.

Sources and credits
This article is adapted from the Wikipedia article “Protector RWS”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Patria AMV XA-360 Ps 645-202 Lippujuhlan päivän 2017 kalustoesittely 3 40 mm GMG.JPG by MKFI, Public domain
- The USCGC Sea Devil mounts a remote-controlled, gyro-stabilized machine gun on her bow.jpg by This image or file is a work of a United States Coast Guard service personnel or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image or file is in the public domain (17 U.S.C. § 101 and § 105, USCG main privacy policy and specific privacy policy for its imagery server)., Public domain
- Protector RWS Users.png by TruncateVirus99, CC BY-SA 4.0
- Stryker-IFV-50cal.jpg by The original uploader was Enigmasoldier at English Wikipedia., CC BY-SA 3.0
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