Thorntail 1913 Offset Light MountAttach any Light designed to attach to a 1913 MIL-Spec Picatinny Rail. Positions the Light at a 45 degree offset angle when mounted to an 1913 MIL-Spec Picatinny compliant railAmbidextrous with 8 total mounting solutions on 4 sided 1913 MIL-Spec Picatinny Rail systemForward/Rearward Adjustable 4 slot 1913 Picatinny rail has 4 separate mounting positions on 1913 Picatinny mount base for infinite adjustabilityPositions the light as close to the firearm as possibleLight offset optimized at a 45 degree offset for ergonomic activationForward mounting design is low profile, lightweight and does not impede weapons manipulationMount does not interfere with the operation of front back-up iron sightsWeight: Ultra-lightweight design weighs only .784 ozQuality is insured by precision CNC machining to exacting tolerances from USA Made 6061-T6 aluminum; then hard anodized Type III black matte finish per MIL-A-8625F100% LIFETIME WARRANTY. PERIODIWC MOUNT-N-SLOT products are MADE BY AMERICANS IN USAUS PATENT: D724,687 & ADDITIONAL PATENTS PENDING