Abstract: A nock assembly for use with a crossbow bolt includes a nock body defining a notch into which the bowstring of a crossbow is insertable. A light assembly includes a switch member at one end of the notch. First and second spherical caps protrude into the notch and define a first gap therebetween. Third and fourth spherical caps protrude into the notch and define a second gap therebetween. The bowstring is positionable between the spherical caps such that the first and second spherical caps resist movement of the bowstring out of the notch, and the third and fourth spherical caps resist movement of the bowstring toward the switch member. Release of the bowstring from its cocked or drawn position causes the bowstring to pass through the second gap and contact the switch member to turn on the light assembly.

Abstract: An apparatus for loading a crossbow includes a first member having a first portion defining a first handle and a second portion defining a first hollow semi-cylinder. A second member has a third portion defining a second handle and a fourth portion defining a second hollow semi-cylinder. The first and second members are rotatable with respect to each other about an axis. The first member is selectively rotatable with respect to the second member about the axis between a first position and a second position. The first hollow semi-cylinder and the second hollow semi-cylinder cooperate to define a hollow cylinder when the first member is in the first position with respect to the second member. The first hollow semi-cylinder and the second hollow semi-cylinder are separated when the first member is in the second position with respect to the second member.

Abstract: An arrowhead includes a ferrule member and four blade members. The ferrule member defines an outer surface, a chamber, and first, second, third, fourth, fifth, sixth, seventh, and eighth slots that extend from the chamber to the outer surface. A first blade member extends through the first and second slots; a second blade member extends through the third and fourth slots; a third blade member extends through the fifth and sixth slots; and a fourth blade member extends through the seventh and eighth slots.