The STB 556 is one of the best Assault Rifles in Call Of Duty: Modern Warfare 3, known for its mid to long-range capabilities, low recoil and incredible accuracy. If you are after a reliable AR that has good all-around stats, the STB 556 is a great option.
The STB 556 is arguably the strongest assault rifle in Call of Duty: Modern Warfare 2. It has an absurdly low time-to-kill, virtually no recoil, and a mobility stat that's closer to an SMG than an assault rifle. If you love hard-hitting weapons but can't stand slow strafe speeds, the STB 556 was made for you.