Not common way
I would like to say something on behalf of the National Rifle Association. The NRA supports the Second Amendment, the right to keep and bear arms.
The NRA does not support people who think they have to have .50-caliber machine guns and grenades to protect themselves or to hunt with. These folks are criminals and this is why ATF agents died trying to serve illegal firearms warrants.
The average law-abiding citizen doesn’t have these types of weapons. I know that certain weapons can be easily modified to full auto weapons, but the average citizen who would own one for hunting purposes wouldn’t do this — let alone shoot federal agents trying to serve warrants or somebody else with it.