Silencerco Radius rangefinder $750 or best offer
Features:
Mounts vertically or horizontally on rail
Continuous ranging for up to 12 hours
Range display in yards or meters
Continuous and single-shot modes of operation
Adjustable display brightness
Waterproof and shock resistant
Compatible with picatinny MIL-STD-1913 rails
Displays 3 ranges- Primary and 2 secondary
Zeros by way of visible laser, then visible laser can be blocked