a post plate including a concave surface configured to receive a prosthetic hook, wherein the concave surface is configured to pinch a finger of the hook when the hook is drawn toward the post plate along the grip plate;

a grip plate coupled to the post plate approximately perpendicular to the post plate, the grip plate including a fixed loop at a side edge of the grip plate distal from the post plate and extending parallel to the post plate; and

an equipment interface coupled to the post plate.