Butler's wrong (Sorry for putting it the mean way), you have to go into the weapon_BBGun, and find server.cs. Somewhere near the middle/bottom, there'll be something called "\\Gui stuff", and under that, "UIname = Gun". Press Ctrl+H, and in the "find" box, type "gun". In the replace (I think) box, type "BBGun". Make sure to name everything that was "Gun" in the Weapon_BBGun file to "BBGun". Kinda confusing, I know. Just think about what I said, step-by-step.