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Rheinmetall and Steyr Mannlicher show new RS556 assault rifle system

Two of Europe’s most respected defence companies, Rheinmetall and Steyr Mannlicher, have joined forces to manufacture and market the RS556 modular assault rifle. This German-Austrian cooperation project adds a key item to Rheinmetall’s growing array of infantry products. At Enforce Tac 2017 the new assault rifle was shown to the professional audience.

RS556 assault rifle with soldier
The long STANAG 4694 rail on the upper side of the monolithic housing makes it possible to mount a variety of different scopes, including night vision devices.

The RS556 is based on the highly regarded STM556, which Steyr Mannlicher first unveiled in 2012. Outstanding modularity characterizes this easy-to-use, future-proof 5.56mm x 45 cal. weapon. 

Rheinmetall and Steyr Mannlicher are offering the RS556 assault rifle as a jointly produced product, made in Germany. Rheinmetall and Steyr Mannlicher each have well over a century of experience in developing and manufacturing infantry weapons. The RS556 project underscores both companies’ commitment to supplying military and security services around the globe with reliable, future-proof, state-of-the-art systems and equipment.

Features of the RS556 assault rifle

Featuring an adjustable short-stroke gas piston system and rotating bolt, the gas-operated RS556 is based on the tried-and-tested Steyr Mannlicher AUG, or Universal Army Rifle, a design concept that has proven itself in decades of service on every continent. 

With a 16” barrel (406 mm) and a fully loaded, 30-round magazine, the RS556 weighs around 4.2 kilograms, just over 9 pounds. The adjustable-length light-weight stock clicks into seven different positions, meaning that operators can adjust the RS556 to match their individual equipment profile in optimum fashion.   

Rheinmetall/Steyr Mannlicher RS556 assault rifle right view
The rifle RS556 with mechanical sights.
Rheinmetall/Steyr Mannlicher RS556 Sturmgewehr linke Ansicht
Highly ergonomic and easy to handle, the RS556 can be readily adapted to individual equipment profiles.

In a matter of seconds and without tools, the hammer-forged barrel can be easily exchanged. This means that the RS556 can be readily modified for various missions.  A number of standard barrel lengths are available (14.5”, 16”, 18” and 20”); however, customer-specific barrel and rifling lengths can be easily created.  

The RS556 features several standard and optional NATO accessory rails with receiver systems designed in accordance with MIL-STD-1913, STANAG 2324 and STANAG 4694. This means that the weapon can be fitted with various optics and night observation devices or laser light modules. A 40mm grenade launcher can also be mounted on the new assault rifle. Moreover, the RS556 is compatible with Rheinmetall’s modular “Future Soldier – Expanded System” (IdZ-ES), and can also be connected to other soldier systems.  

Rheinmetall/Steyr Mannlicher RS556 Sturmgewehr
With the RS556 Sturmgewehr, Rheinmetall is adding a key component to its product portfolio in the infantry sector.


For further information, please visit the  Rheinmetall and Steyr Mannlicher website.

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