With the Dictator adjustable gas block, you can now control the rate of fire, gas pressure, and the reliability of your rifle. Choose one of 9 gas positions to dictate the gas pressure and cyclic rate. Adjusting the gas system is quick and painless. Choose one of three methods to dial the gas regulator: a flat screwdriver, 3/32 hex wrench, or the dictator wrench. The Dictator adjustable gas block features a straight gas tube.