Even in poor weather and light conditions, this Swarovski 8x30mm Rangefinder Laser Guide will give you a hyper-accurate range to a target. This optics accessory has an effective range of up to 1,500 yards and is accurate to a degree of plus or minus 1 yard. This is one accessory hunters need to have with them in order to bag that trophy buck. Plus, it's waterproof, lightweight and tough enough to be used in the field under adverse conditions. May or may not include accessories.