This 9 position adjustable di gas block provides the ultimate range of adjustability and versatility.The addition of a suppressor typically increases the level of back pressure within the rifle system.This increase will prematurely wear parts and increase the amount of gas/carbon introduced into the chamber.With the dictator, you can now control that rate of fire, gas flow and ultimately the reliability of your system.Finish: Black/SilverType: Gas BlockModel: Adjustable Gas BlockDimensions: .223/5.56Size: Carbine LengthMaterial: Metal