[John Sabato]

The use of high capacity magazines such as the TM-08 shown in these photos is perfectly legal in the U.S. to use with any Luger.

Both these magazines and shoulderstocks are legal in Germany where Dieter lives.

What is not legal here in the U.S. is the creation of a new high-capacity magazine (Except for official law enforcement use)... It must be one of the originals...

The use of shoulder stocks on the other hand, is ONLY LEGAL with the same type of Pistol that they were manufactured to be used with.

For example, An GENUINE Artillery Luger can be used with a GENUINE (or reproduction) Artillery Luger stock according to the ATF.

BUT an Artillery Luger CANNOT legally be used with any other stock including a Navy Luger stock without violating the law. The reverse is also true for Navy Lugers...They can't legally be attached to either an Artillery Model stock or a custom stock of any kind.

See the ATF website for the List of C&R handguns that are exempt from shoulder stock restrictions.

If you desire to stock one of your Lugers that is not specifically listed on the ATF Curio & Relic List as exempt from the National Firearms Act of 1934, then you must make application to the ATF for creation of a Short Barreled Rifle (or SBR) and pay a $200.00 federal tax up front BEFORE you acquire the pieces necessary to stock the Luger...

I advise all Luger owners to play it safe... and don't jeopardize the right to own firearms in the U.S. by a felony conviction for being ignorant of the law.

If you are not sure about whether a particular configuration would be considered in violation of the NFA, please don't hesitate to ask here on the forum... Many senior members here would be glad to advise you so you don't get into trouble with Uncle Sam.