Did you make a folder, extract the files of the colt into it, rename it, then put it in C:\blockland\add-ons?
All I know is I downloaded a Weapon_colt.zip and put it in my addons folder. It shows up in the addon menu. But they don't show up in game.
Edit: I renames the folder so they work now. The problem is the colt worked. But the dual colts didn't have the ammo part working. They were just like the regular guns.
