All items are tied to the feather via CustomModelData if you're using the version of meincraft 1.12.2 can replace the CMD to durability. Folder weapons contains all the weapons (ar - assault rifles) in the folder others is medicine and the sight, reload, sprint (in these three folders models work through inheritance ) if something does not understand - please contact me in discord, I will try to explain you more - [OMEC] zima 1#4618 (my discord)

  Open Resource Pack folder in .minecraft and drag the texture pack in, use F3 + T to reload the pack. 

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