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RS556
Category
Law enforcement, small arms and protection
In January 2017, Rheinmetall announced a collaboration with Steyr Mannlicher to offer the RS556 — based on Steyr's STM556 — as a candidate for the German Armed Forces Assault Rifle System programme to replace the in-service Heckler & Koch G36. The RS556 uses an adjustable short-stroke gas piston operating system and accepts standard STANAG magazines. The partnership combines Rheinmetall's system integration expertise with Steyr Mannlicher's established small arms engineering, positioning the RS556 as a
domestically sourced option for Germany's next-generation assault rifle requirement.