Madsen M50 Mags??

Does anyone know of a source that sells the Madsen M50 (9mm) mags (Retail/Private)?

I'd like to get 1 or 2.

Thanks for any info,
Kyle

I forget the name of the place, but they're in shotgun news with a 6 page spread in NJ. Huge warehouse of parts.

I've seen them advertise them in the past.