Superlative Arms' patented Bleed Off Mode gas block is a revolutionary gas management solution for AR-15, AR-10 and LR-308 platforms. By bleeding excess gas out the front instead of restricting flow, this innovative design ensures smooth cycling, reduced recoil and less internal wear, making it the perfect upgrade for improved performance. 0.875 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 DLC gas block coating