Cant change the meshId of a head on a dummy

[SmarterThanRegan (Brollow)]

Hey, I’m currently making a script which should change the meshId of a head on a npc, but i can’t figure out how to without getting errors. this is my script:

[SmarterThanRegan (Brollow)]

I can show the error I’m getting from the script if needed

[Valkyrop (JustAGuy)]

I am not sure if you can change a Mesh’s ID like that, you might need to do it manually or figure out a diff way.

[Galaxy8081 (Galaxy)]

You cannot change meshIds using lua.

Unable to assign property MeshId. Script write access is restricted?

So today i figured out i cant assign mesh id’s with scripts, im making an fps game and my arms arent separate from the gun models which means i want my script to cycle through each gun model in replicatedstorage and change the meshid but apparently I cant somehow i can set textures and decals but not mesh’s. Is there any way to combat this? and if not this must be a huge joke.