Hey Shirk,
The system only includeds a inventory system and no weapon system- they are seperate systems within a game and i have kept them seperate to make the code cleaner to read and the price cheaper. I am working on a tutorial to implement the C++ survival game by tom looman and JCInventory together, this will have examples of how to use JcInventory with a weapon system. Just cleaning up some replication bugs. The C++ Survival game includes a pretty darn good weapon system, and you can import it totally for free yourself!
I am working as well on JcWeaponSystem, but development for the community takes time (Much longer then developing for myself) as i want to take the care to make sure things are clear reducing the amount of support needed. This will be released when it is ready on the forums.