OVERVIEW
The STM556 is designed to compete in the crowded AR-15 market - offered by the Austrian concern with a quick-change barrel feature and ambidextrous controls.
The STM556 is designed to compete in the crowded AR-15 market - offered by the Austrian concern with a quick-change barrel feature and ambidextrous controls.
YEAR: 2012
MANUFACTURER(S): Steyr-Mannlicher - Austria / Rheinmetall - Germany
OPERATORS: Austria; United States
SPECIFICATIONS
Common measurements, and their respective conversions, are shown when possible. * Calibers listed may be model/chambering dependent.
Common measurements, and their respective conversions, are shown when possible. * Calibers listed may be model/chambering dependent.
ACTION: Selective Fire; Gas-Operated
CALIBER(S)*: 5.56x45mm NATO
SIGHTS: Iron Front and Rear; Optional Optics
ADVERTISEMENTS
LENGTH (O/A)
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mm
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inches
BARREL LGTH
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mm
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inches
WEIGHT
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pounds
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kilograms
MUZZLE VEL.
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fps
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meters-per-second
RATE-OF-FIRE
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rpm
RANGE (EFF)
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feet
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Meters
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Yards
VARIANTS
Series Model Variants
• STM556 - Base Series Designation
• RS556 - Assault rifle form offered by Rheinmetall of Germany and Steyr-Mannlicher; variable barrel lengths; 4.2kg weight; lightweight adjustable stock; standard and optional accessories rail support.
Series Model Variants
• STM556 - Base Series Designation
• RS556 - Assault rifle form offered by Rheinmetall of Germany and Steyr-Mannlicher; variable barrel lengths; 4.2kg weight; lightweight adjustable stock; standard and optional accessories rail support.
