This conversion kit includes everything you need to convert a Tippmann 98 Custom from a regular hopper fed paintball gun to a magazine fed paintball gun. If you’ve looked at how the feed port is integrated in to the body then you can tell that this is no small feat. The kit includes a new body for the gun that puts the feed port under the gun instead of on the side. It also has the magazine mount and a 20 round magazine too. You can even upgrade your magazine to a large Box Magazine that mounts to to the same position underneath of the gun. The Nautilus Box magazine holds up to 200 rounds.