EOTECH 512.XBOW Holographic Crossbow Sight - XBOW Reticle w/ Rangefinder EOTECH 512.XBOW - Holographic Weapon Sight in Back with XBOW Reticle Crossbow Specific - A pre-calculated ranging scale (in yards) is projected on the target and measures the back to the belly of a typical mature whitetail deer (18) Mount - Compatible with both 1" Weaver and MIL-STD 1913 Rails Water Resistant - The 512 is water resistant to 10 feet (3m) EOTECH HWS Prestige Warranty - Comes with 10 year limited warranty