The FR-1 DCH (Data Card Holder) allows a Hawk Hill Custom RMD to be quickly attached to the FR-1 base. It attaches via high strength magnets and can be mounted in one of four locations to meet the shooter's preferences and is completely ambidextrous. It utilizes a flexible design with multi-axis rotations to allow target data and information to be easily viewed without changing shooting positions. Features: Allows a Hawk Hill Custom RMD to be quickly attached to the FR-1 baseTarget data and information to be easily viewed without changing shooting positionsAttaches via 6.75 LB pull force Neodymium Magnet American Precision Arms FR-1 Magnetized Mount Data Card Holder FR1DCH00