The EGW Picatinny Rail Scope Base is precision-machined from 6061-T6 aircraft grade aluminum with a 20 MOA built-in cant for enhanced long-range shooting performance on Remington 700 722 and 40X Short Action rifles.EGW Heavy Duty Picatinny Rail Scope Base20 MOA built-in cant for long-range precisionCompatible with Remington 700 722 40X Short ActionMachined from 6061-T6 aircraft grade aluminumMatte black finish with ambidextrous bevel designCenter spread: 3.627" Overall length: 6.276"Compatible with Picatinny or Weaver scope ringsIncludes socket head Torx screws and wrenchDesigned for precision shooters and hunters who demand reliable accurate scope mounting with the versatility of Picatinny rail compatibility. Installation requires 20 inch-lbs torque with blue Loctite for secure mounting.