Hello,
I have seen this type of laser for sale on e-bay once and a while. (see attached file) But I haven't been able to procure one for myself yet. The products on e-bay show Walther packaging. I have been trying to find one through regular retail sources without any luck.
Carlwalthers customer service told me it was a Smith & Wesson part that they do not sell. I guess the only German made laser for the P22 requires that the longer 5" barrel be installed.
If anyone finds this online for sale, please post.
Marty