All that Class III stuff that our range allows, comes with the lovely unwritten clause that the "boys" in blacked out suburbans know who you are, where you are, and can come by to visit your home whenever they like...
Not that they can't do that anyway to lowly folks like me with a C&R, but I'm further down "the list"....

Our Class III dealers have a Thompson for a lot less than $25,000. Most of the others are $14k to 25k...Including a "real" Colt M-16.
with "happy button"...