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.
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: 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
• 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.
• 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.
