Yep biggest loophole in the systemCant you get straight machine guns at gun shows? Which I'd guess are held often in Vegas?
Is avoid the dealers at booths and buy from the private sellers walking around
No need to do paperwork straight cash / card transactions
Can get pretty much anything
Then hit the booths
And sell to them and make a profit
Buy private then sel
Trade etc 99% of the time you will come back with more than you left the house with