At LAAD ’11 Taurus introduced a new assault rifle called the ART556. The rifle, as its name suggests, is chambered in 5.56x45mm NATO.
Externally, the rifle appears to have borrowed features from the FN SCAR and the Bushmaster ACR. It has a forward charging handle that looks like it is able to be switched to either the left or right side. The upper is aluminum and the lower is polymer with an integrated magwell grip. The gun appears to use an AR-15 compatible pistol grip. It has a safe/semi/3 round burst/full selector switch.
If Google Translate is doing its job correctly, I believe that the above gun has a 10″ barrel and weighs 7.9 lbs.
A civilian legal version of the rifle is named the CT556. It is only capable of semi-automatic fire.
[Hat Tip: mexicoarmado.com ]