Can a corporation buy current production class III weapons?
I'm sure some can. How much bribe money you got?
NFA trusts, as far as I know, only extend to FA firearms made before the cutoff date in 1986. But I am no expert in these matters.
Yes and No. Mainly No.
First, there is no such thing as a class iii weapon. They are called Title 2 firearms under the National Firearms Act.
Under the NFA and GCA of 68, to manufacture of deal in them, you had to have an FFL and pay an SOT.:
Type 1 FFL (retail sales of firearms) + Class 3 SOT = you could sell NFA items without paying the $200 tax between other FFLs.
Type 07 FFL (manf) + Class 2 SOT = you can manufacture AND deal in Type 2 firearms.
Second, ATF does not allow an FFL inside of a trust. A corporation CAN acquire Type 2 NFA firearms inside of an LLC or corporation if the LLC or corporation has their Form 7 (application for FFL) listed as that name, AND the state in which it is operating allows it.
FFLs with appropriate SOTs can acquire post-sample (after FOPA 86 act 19 May 1986) with a sample letter from a law enforcement agency. Type 2 SOTs can get post samples by either manufacturing them, or by taking them from another SOT going out of business.
Both "class 3 and class 2" SOTs can acquire pre-may samples and keep them after giving up their license.
Individual citizens cannot own any machineguns manufactured after midnight, 19 MAY 1986 unless they apply for, and obtain an FFL/SOT.
.....of course law enforcement is exempt.....spit.