So what should I do to fix that, It doesn’t works ingame or in studio test but it works in studio when parenting the tool to a dummy or even using a grip editor plugin.
I think you should check if the tool is not anchored. If it is, then unanchor it and weld all parts. Also, if you have a part named “handle”, that is very important. Handle is the most important part in your tool. If you don’t have it, then name your main part handle.
Try to make the Weapon Model look like the one on Toolgrip, straight and etc.
And maybe you’ll notice that in the toolgrip it will be different, then just edit it again and try.