[Ron Wood]

The wording of the 1981 BATFE letter permitting reproduction stocks states:
“…any Luger or Browning Hi-Power pistol which would be removed from the purview of the NFA if equipped with an original shoulder stock, would also not be subject to the NFA if equipped with a reproduction shoulder stock which either duplicates or closely approximates the dimensions and configuration of the original stock.”

The ATF curio and relic list statement for the LP08 that is removed from the purview of the NFA reads as follows: “Luger, German model 1914, Artillery model pistol, mfd. by DWM or Erfurt, having chambers dated 1914-1918, bearing Imperial German military proofmarks & accompanied by the original, German mfd. artillery type, detachable wooden shoulder stocks.”

Note that the configuration of the shoulder stock is not stipulated. For the Navy Luger it is expressly stipulated that the stock must be “…original board-type detachable shoulder stocks bearing brass or iron discs…”, and goes on to give the exact dimensions of a Navy stock.

Since the prototype stock meets the requirement of being “German mfd. artillery type, detachable wooden shoulder stock”, it would seem to follow that an exact reproduction of the prototype meets the criteria for exemption.