A modular shaped charge system including a housing including a circular opening; an attachment ring having a diameter complementary to a diameter of the opening of the housing. The attachment ring configured to snap fit into the opening of the housing. A liner including a cone shape with a base diameter complementary to the diameter of the attachment ring. The liner is configured to snap fit into the attachment ring. The apex of the liner is positioned inside the housing. An air gap cover including a cone shape with a base diameter complementary to the diameter of the attachment ring. The air gap cover is configured to thread into the attachment ring, and the apex of the air gap cover is positioned outside the housing.