Gas Controls Adjustable Gas Block - Gas Control 1.9'''' Model Rs7519 0.750''''diameter

The revolutionary RIFLESPEED(TM) Gas Control System (US Patent #US20200116446A1, additional patents issued and pending) makes controlling your rifle's gas flow reliable, repeatable, and foolproof. Need more gas? Turn it up. Need less gas? Turn it down. With the easy-to-grasp Control Knob, it's that simple and no tools are required. The highly visible numbering on the Control Knob ensures that you'll always know your setting. Return to a previous setting instantly by simply turning the Control Kn