For AR-15, AR-10 and LR-308 enthusiasts looking for cutting-edge performance, the Superlative Arms patented Bleed Off Mode gas block is the ideal solution. By venting excess gas out the front instead of restricting flow, this design ensures smoother cycling, reduced recoil and less wear on internal components, enhancing your shooting experience. 0.875 inches x 1 inches direct impingement adjustable gas block Solid, set screw attachment type Gas adjustment (patented) - features 30 fixed positions located at the front of the block Bleed-off port (patented) - located at the front of the block, designed to vent forward, directing emissions away from the operator QPQ melonite gas block coating