The "HAVOC" is the first launcher built on a modular platform. Using a single base unit you will be able to convert your launcher into many formats simply by adding kits to your original purchase. Did you start with the under mount launcher? Simply buy the rifle kit and you now have two launcher configurations without having to buy a whole new launcher. Metadyne and UMS will be working to add kits and upgrades to this launcher through out the next year, Breach load, Bazooka, law configurations to name a few.