This attachment enables the marksman to control his firing position - upright or canted - thus atteining maximum scores.
The spirit-level is integral with the foresight tunnel and concentrically adjustable.
The combined spirit-level foresight has been nationally and internationally approved for small-bore free rifle, small-bore English Match and free rifle range  300 meters.
When ordering please state thread of foresight tunnel M 18x0,5 or M 17x0,5.