Colt's M4 was designed to exploit firepower capability in confined spaces where lightweight mobility, speed and violence of action rule. The M4 can be comfortably carried with its 11.5" barrel, yet be instantly available to provide the type of firepower required to overmatch combatants. Because it provides the full 5.56MM power and accuracy in a very compact size weapon, the M4 is often chosen over smaller, less powerful weapon systems. Regardless of the application, the Colt M4 provides superior qualities enabling operators to accomplish an increasingly wide range of applications.Features :"Barrel Length: 11.5";"Capacity: 30+1 Rounds"Action: Gas-Operated Semi-AutoColor: Black