132. What is the maximum effective range of the CX4 Carbine in 9mm, 40 S&W or 45 ACP chamberings?

The CX4 was designed with law enforcement in mind to fill the gap between a pistol and a bolt action rifle. This would put the expected range of use from 25 to 100 meters. The standard sights are regulated for 50 and 100 meters. Too many variables can affect the effective range to give an actual figure on the answer.  The  range could be changed based on such factors as shooter skill, ammunition type, and optional  types of sighting systems.