BORS is an integrated electronic ballistic computer that mounts directly on your riflescope and couples to the elevation knob. Just turn the elevation knob until the LCD displays the target’s range. The BORS’ three internal sensors will have automatically calculated your ballistic solution. It compensates for aiming up or down, temperature, and barometric pressure changes. It even tells you if the rifle is canted. Place the crosshair on the target and fire with first-round confidence. Compatible Scopes:Leupold® Mark IV 3.5-10x40mm LR/T M1 - Leupold® Mark IV 3.5-10x40mm LR/T M1 - Leupold® Mark IV 4.5-14x50mm LR/T M1 - Leupold® Mark IV 6.5-20x50mm LR/T M1 - Leupold® Mark IV 8.5-25x50mm LR/T M1 - Leupold® Mark IV 8.5-25x50mm ER/T M1

$1,509.99