T-Rex introduce their Next Generation Target System for CQB called the Chameleon Variable Threat System... "Putting rounds on target is easy. Putting rounds on only the CORRECT target is hard, especially in real world situations. Identifying threats based on visual criteria is an important skill that every armed citizen needs, whether they’re civilian, military, or law enforcement.

This is why we developed the new Chameleon Variable Threat System. Never see the same target twice."