Please don't perpetuate bullcrap about suppressors. Suppressors are partially defined as being part of a portable firearm....so unless you can pick-up six or eight tires.
Sorry, not perpetuating "bull crap" - communicating real-world experience. Considering the number of "authorities" on the NFA item subject there is only ONE body that writes and enforces the law on NFA items. HOWEVER, most will find it far more expensive (in legal representation) to "ask forgiveness, rather than to ask permission."