SIG Sauer 556 Complete Specs and Full Gun Specifications

The Classic’s sleek profile & compact length is enhanced by a 16’’ button rifled barrel. SIG SAUER shaved a pound off the Classic model by the redesigned alloy trigger housing, AR style magazine and flash suppressor. The SIG 556 Classic brings back the look and feel of one of the world’s most sought after military rifles but on a platform available for law enforcement and responsible citizens.