The all-aluminum, one-piece, Vortex 35mm Precision Extended Cantilever Mount gives you plenty of eye relief and provides proper head placement for mounting scopes on flattop rifles. The Vortex 35mm Precision Extended Cantilever Mount clamps directly to Picatinny rail, letting you remove and reattach the scope and mount as a single unit. Also available with built-in 20 MOA of elevation. Precision machined from 6061 T6 aluminum Hard coat Type 3 Mil-Spec anodized Positions center of scope 1.574" above the base The Vortex 35mm Precision Extended Cantilever Mount is a rock-solid, optics mounting platform that clamps securely to your Picatinny rail using two Allen Mfg: Vortex Optics