Hey, I found a way to stop the gun from clipping when aiming, if you look at the photo, the gun is missing the back and the wrist is invisible. By reducing the near clip plane setting in project settings you can have those areas show up.
if that bothers you (like it did me) go to edit at the top, project settings, then just use the search and type ‘clip’ adjust what you see in the second photo, i chose 1 and it looked perfect.
*** You have to save, close and reopen the project for the setting to take effect though***