Odd Luger

[bobofthedesert]

The Broomhandles, Lugers, and High Powers were specifically exempt by the BATF. A copy of any of those pistols fabricated by an individual is not, regardless of the serial number. John Martz made copies of the Luger carbine with a shoulder stock, but had to make the barrels 16" long to be legal.
Not all Lugers are legal with a shoulder stock, but specifically the WWI LP.08 (Artillery) and Navy, and the commercial Luger carbine are exempt as a group whether the stock serial number matches or not. On any of the mentioned Lugers a reproduction stock is also legal.

This gun being made in 1922 predates the NFA of 1934 which defined what an SBR (short barrelled rifle) was. IMHO, there is a better than even chance that if an opinion letter was requested from ATF "in the correct manner" it would result in a statement from them that it was legal. The REASON that all the noted Lugers are exempt as a group whether the numbers match is likely BECAUSE of their period of manufacture. Can't speak to how that would apply to Broomhandles and Hi-Power's, just MHO. I'm not sure if that bit about repro stocks, do I recall correctly that those for Hi-Powers have to be of period manufacture? Fortunately the Chinese have taken care of that for us....;D

And of course if the gun is in Canada, this is a moot point.