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Steyr-Mannlicher STM556


Assault Rifle / Assault Carbine


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.
Authored By: Staff Writer | Edited: 1/12/2017
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Specifications


Year: 2012
Manufacturer(s): Steyr-Mannlicher - Austria / Rheinmetall - Germany
Action: Selective Fire; Gas-Operated
Caliber(s): 5.56x45mm NATO
Sights: Iron Front and Rear; Optional Optics
Overall Length: 850 mm (33.46 in)
Barrel Length: 370 mm (14.57 in)
Weight (Unloaded): 6.33 lb (2.87 kg)
Muzzle Velocity: 2,900 feet-per-second (884 meters-per-second)
Rate-of-Fire: 900 rounds-per-minute
Effective Range: 1,650 ft (503 m; 550 yd)
Operators: Austria; United States






Variants / Models



• 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.
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