The Superlative Arms patented Bleed Off Mode gas block reimagines the traditional gas block by venting excess gas through the front rather than restricting flow. This innovative feature improves the cycling of your AR-15, AR-10 or LR-308, reduces recoil and minimizes wear, ensuring a more efficient and durable shooting experience. 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 Matte finish on gas block