The Superlative Arms patented Bleed Off Mode gas block is a game-changing innovation for AR-15, AR-10 and LR-308 platforms. Unlike traditional adjustable gas blocks that restrict gas flow, this direct impingement design bleeds excess gas from the front of the block, optimizing cycling, reducing recoil and minimizing wear on internal components for superior performance. 3/4 inches x 1 inches direct impingement adjustable gas block Clamp-on 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