Unlock all weapons without having to progress the story
This is a very simple mod that does exactly what it says, you will have all weapons unlocked in all gunsmiths as soon as you arrive in Chapter 2. You still need to buy them, the mod simply makes them unlocked for purchase right away.
I am aware another mod that does the same thing already exists, but my mod is updated and also works with other mods such as 1899 Firearms, Munitions, etc.
To install put the asi in your Red Dead directory.
Requires: script hook