Hi Brent yes I do have most, if not all the fortnite Weapons. I assume this is the one with the upgrades you were referring too? Now I havent had a chance to merge/ remove the over lapped pieces so do let me know if where on the right track? Then I'll find a chance to prepare the model for printing.
You can open in windows 10 free 3DBuilder and pull the pieces apart yourself now that I have created individual panels. But the individual pieces wont go back together as you would think, so be weary when seperating them, you will need to duplicate and then delete the suround model to get the correct fitting pieces you want.
Hope that makes sence, Just I dont have time at the moment and with the last two weeks being school holidays I've been doing the family thing ; ) Cheers Jace : )