Anybody know if the magazine catch on the new(er) P225A can be swapped to the right side?

Do you have the owner manual? It should show you how.

I thought the same thing, but the only 225 manual I could find online says nothing about it. It also no longer contains the fully exploded parts diagrams - they only explode them out to field stripped. The frame parts are not shown at all. Really dumbed down from the old manuals.

From the pictures I've seen, it's not the same arrangement as the other P-series with the swappable back plate. It looks more like the Sig Pro, two-piece type.

I guess I'll just have to try it, but the newer mag catches give me fits. Was hoping for a firm answer before messing with it.

I don't have one. If it is similar to the SIGPro series, then all you need is a paper clip.

MagCatchRelease by GaryBF, on Flickr