US Patent 10883806 Method and apparatus for aligning arrow nocks

An arrow nock may have at least two distinct string guide impressions each designed to receive a bowstring to fire an arrow from a bow. The nock may be operable when connected and aligned with the arrow to cause the bowstring to be received within at least one of the string guide impressions to fire the arrow. As it is received within the string guide impression, the bowstring may cause the arrow to rotate about its longitudinal axis.