To All,
Let me make some clarifications so no one makes a BIG mistake.
These are photos of both sides of examples of Ideal Grips that as Big Norm has correctly indicated are necessary to attach the ideal stock to a Luger.
Even though you might have possession of the stock, a set of these grips, and any Luger, UNDER FEDERAL LAW IT WOULD BE A CRIMINAL ACT to attach the Ideal stock (using the necessary grips) to any Luger (for any reason including just Display) that is NOT on the ATF C&R list as being exempt from the National Firearms Act, because if the Luger is not on the list it is NOT exempt. It is that simple. I hope that clears up the question...