The ATF allows family trusts to own NFA weapons.
Normally a NFA item registered to an individual cannot be out of that person's control. It has to be secured where no one else has access to it. So, if you want to let your brother, kids, dad, etc use your suppressor, you have to be present. Some say you need a seperate safe, but you can just use a lock box in your safe or some other means––they don't say to what level it needs to be secured.
So, on a trust (like a LLC), you can add whomever you want to have access to your NFA toys. But bear in mind, you are going to be responsible for their actions.
Trusts don't need the CLEO's permission before buying, nor do they need to submit fingerprints.
Everyone in MO that wanted all of these advantages went the LLC route until now. But the LLC could pose potential problems with business licenses, neighborhood regs, renewal fees, taxes, but mainly, insurance. Best part is, you can tear up the trust and the NFA guns are still yours. Wrap up a LLC and it's $200 a piece to transfer them to you as an individual, a trust, or a new LLC.