The VariArc-VS® helmet mount provides a full-featured, universal mounting solution for headborne illumination. The locking teeth are biased to the forward position, keeping your light aligned for the most critical uses. However, with a firm twist, the VariArc-VS mount unlocks and rotates through 8 additional lower-force index points for administrative tasks and diffused lighting options. Its small footprint and low profile keep things tidy. The VariArc-VS includes both a Picatinny rail and a Scout light mount, allowing for maximum compatibility with visible and IR lights. The VariArc-VS is built to remain fully functional through extreme temperatures, dirt, dust, sand, water, drops on concrete, and rough handling. If you are interested in the rail-mounted models of the VariArc, click here to see the Dovetail, Team Wendy®, and M-LOK® versions. Installation Video. Written instructions are below: Picatinny Installation: Do NOT loosen the adjustment center screw before mounting! Attach the light to the Picatinny section of the VariArc-VS. Mount the Velcro base to your helmet (see removal instructions below for repositioning) Verify VariArc-mounted light rotation after install. Torque the center screw to adjust unlocking force. Scout Mount Installation: Remove the Picatinny mount: unscrew the center screw with the included 5/64th allen key. Retain the nylok nut on the bottom of the base. Retain the cap, wave washer from the assembly and reassemble back into the Scout mount in the same configuration as the Picatinny mount. Screw the center screw through the assembly and into the nylok nut. Tighten to 4-5 in-lbs or until the assembly no longer rattles. Attach your light to the Scout mount using the included socket head cap screws using the included 9/64th allen key. NOTE: Verify the included socket cap screws are the correct length for your light, use your own screws as necessary. Tighten each screw per the light manufacturer’s specifications Mount the Velcro base to your helmet and verify rotation angles; adjust as necessary. See below for removal/repositioning. Removal: Velcro is extremely strong! Use a flat, blunt blade (large flat head screwdriver, putty knife, etc) to slide between the two Velcro layers to separate the VariArc-VS from the helmet. WARNING: Removing the mount by forcefully pulling it away from the helmet may damage the helmet’s loop Velcro or separate the adhesive holding the Velcro to the helmet or the VariArc-VS.