Armalite's gas block are finely machined carbon steel.
These kits include: gas block with a MIL-STD 1913 rail, two clamp screws, and gas tube pin.
Torque: 55 inch lbs.
Note: Please read Tech note 97 (in our website Library) thorougly to determine if you are comfortable with the installation tasks. If you would like our Premier Services Division to install this kit into your firearm, please contact our sales department at email@example.com. Kit installation by our Premier Services Division typically requires less than one hour of labor