The Superlative Arms patented Bleed Off Mode gas piston system transforms the AR-15 platform with its unique gas flow management approach. This system diverges from traditional adjustable blocks by bleeding excess gas out the front of the block, rather than restricting it. This innovative method enhances firearm reliability and performance while reducing recoil and wear on internal components. By effectively managing gas pressure, it ensures smoother cycling and improved shooting accuracy. Discover advanced firearm technology with the Superlative Arms Bleed Off Mode, crafted for precision and durability. 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 0.625 inches x 1 inches solid set screw QPQ melonite 416 stainless steel piston gas block Left-handed, fully automatic AR-15 bolt carrier, dark DLC coated, 8620 steel Carbine gas system/operating rod length