Is there a way to make an exact copy of the crossbow as a modded item?

Why would you wanna do that though? If you want to want to modify the crossbow you can use global triggers.

You can look directly through mcreator. Type crossbow in the search bar on the left.

like a custom crossbow?? well just make its texture and set it's animation to crossbow or whatever.

uhhh i am also having this problem but the only thing i want is for the ranged item to be held like how someone would hold a crossbow but for some reason thats not built in and i have no idea whatsoever how to set that up and would like help please :'(