As promised, Volition has released some mod tools for Saints Row IV. The first modding SDK release for Saints Row IV focuses on weapons and includes tutorials, template files, and tools for creating your own new weapon models for use in-game.
Those interested can download the SDK from here. Do note that while this first release focuses on the game’s weapons, newer SDK releases will cover additional areas.
It will be interesting to see what Saints Row IV’s modding community will be able to achieve with – and the future – Modding SDK, and whether the game’s mods will be able to surpass those found in GTA IV.