It would be very nice to have it compatible
Basically

• The left arm does not hold the grip
• The ADS animation not working but zoom only
• The reload animation neither working
  That would be grateful if, it's compatible with FPS-model mod, because I wanna see my body too (i'm using figura and ysm (ysm not compat with fps mod so I'm not saying in here))

Incomplete solution, but change the Firstperson Model Mod configuration.
Add Timeless&ClassicZero itemIDs to ~/minecraft/config/firstperson.json > autoToggleModItems.

This is the same way to work around rendering issues with mods that change the rendering of vanilla hands, such as EpicFight.

I am not an English speaker, so sorry if the content is incomprehensible to you. :)

Incomplete solution, but change the Firstperson Model Mod configuration. Add Timeless&ClassicZero itemIDs to ~/minecraft/config/firstperson.json > autoToggleModItems.

This is the same way to work around rendering issues with mods that change the rendering of vanilla hands, such as EpicFight.

I am not an English speaker, so sorry if the content is incomprehensible to you. :)

Changing configuration can solve the problem, although it is not perfect solution.

Incomplete solution, but change the Firstperson Model Mod configuration. Add Timeless&ClassicZero itemIDs to ~/minecraft/config/firstperson.json > autoToggleModItems.

This is the same way to work around rendering issues with mods that change the rendering of vanilla hands, such as EpicFight.

I am not an English speaker, so sorry if the content is incomprehensible to you. :)

would you mind showing me an example when adding the IDs to the config file... please?

Incomplete solution, but change the Firstperson Model Mod configuration. Add Timeless&ClassicZero itemIDs to ~/minecraft/config/firstperson.json > autoToggleModItems.
This is the same way to work around rendering issues with mods that change the rendering of vanilla hands, such as EpicFight.
I am not an English speaker, so sorry if the content is incomprehensible to you. :)

would you mind showing me an example when adding the IDs to the config file... please?

Hi! Just add "tacz:modern_kinetic_gun" in "autoToggleModItems".
It should look like this:
"autoToggleModItems": [
"exposure:camera",
"tacz:modern_kinetic_gun"
]