Vortex Pro 30mm cantilever ring mount provides the correct height and forward placement for proper scope mounting. TORQUE SPECS Base Clamp Screws 30 in/lbs Ring Screws 18 in/lbs Features: Design offset to eliminate the need for multiple different offsets. Horizontally split for easier mounting. Type 2 Low-Glare Matte Black Anodized.\ 6061 Aluminum. Picatinny Rail Compatible. Utilizes 1/2" Hex Bolts for a secure hold. 2" Offset.