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On 19 September, Rheinmetall held its annual dynamic field demonstration at its Unterlüss, Germany test centre, this year showcasing the IdZ-ES soldier modernisation system, its RS556 assault rifle with which Rheinmetall is bidding to replace the Bundeswehr's G36 assault rifle, a BOXER 8x8 armoured vehicle with a LANCE turret manned and Rheinmetall Canada's Multi Mission Unmanned Ground Vehicle (MM UGV), all networked sharing a common picture of the battlefield. This article is focusing on Rheinmetall and Steyr Mannlicher's  RS556 modular assault rifle system and RS40 grenade launcher co-operation.

Rheinmetall and Steyr Mannlicher are offering the RS556 assault rifle as a jointly produced product, made in Germany, with a German valued added share of 60%, having set their sights on the German market, touting it as a possible candidate for the new German Armed Forces (Bundeswehr) Assault Rifle System programme (System Sturmgewehr Bundeswehr - SSB): the Bundeswehr intends to replace their standard G36 assault rifle with a more advanced system starting in 2019.

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 (14.5in, 16in, 18in, and 20in); 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 (in this case the RS40) can also be mounted on the new assault rifle. Moreover, the RS556 is compatible with Rheinmetall’s modular IdZ-ES, and can also be connected to other soldier systems. A special breech system with an emergency operation feature ensures that the weapon always functions reliably even in extreme operating conditions, e.g. in severely hot and cold environments.

Featuring an adjustable short-stroke gas piston system and rotating bolt, the gas-operated RS556 modular assault rifle is based on the tried-and-tested Steyr Mannlicher AUG (Universal Army Rifle), a design concept that has proven itself in decades of service on every continent, according to Steyr Mannlicher. With a 16in barrel (406mm) and a fully loaded, 30-round magazine, the RS556 weighs around 4.2kg, just over nine 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.

 

 

The RS40 grenade launcher is based on the Steyr Mannlicher GL40. This weapon, 850mm long, can be mounted to a rifle as an add-on module or, with a separate shoulder stock, serve as a standalone grenade launcher. The rifle-mounted variant weighs approx. 1,040g, the grenade launcher, 2,180 grammes. The RS40 is a breech-loader that can beo pened on the side. It can fire any standard 40mm x 46 cal in the low-velocity spectrum, attaining ranges of up to 400 metres. The RS40 complements Rheinmetall’s extensive array of 40mm systems, which also features a versatile ammunition family and advanced fire control technology, for which the company now touts itself as a on-stop-shop for soldiers.

 

 

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The RS556 and RS40 are the outcome of German – Austrian cooperation projects, thanks to which Rheinmetall has now added two new key components to its portfolio of infantry products. The RS556 is based on the STM556, which Steyr Mannlicher first unveiled in 2012. Outstanding modularity characterises this easy-to-use, future-proof 5.56mm x45 cal.weapon. (All Photos: Rheinmetall)

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