I saw where GrabAGun had some 41 mags for sale. I normally like to buy them from Brownells since they have a good return policy.

It was not too long ago where there were comments about mags not inserting into the pistols. A person contacted S&W and they told them to squeeze them in a vice to make them fit. I learned about this over at rimfire central , S&W Model 41 folder. Just an FYI if you get some magazines that are tight at the bottom. Some people did what S&W suggested and the magazines were fine after that. I suspect that S&W farms out the magazine production.