I have a question regarding third gen autos, specifically .40 S&W. Will 4006 mags work in a 4013TSW? Will any other S&W third gen .40s work in the 4013TSW? Thanks for any info you can provide.
The 4006 magazine will work in the 4013; however, it will extend below the bottom of the grip. There are (were?) grip adapters available to fill the gap. I have one of the 4006 mags with the extender for my 4013 TSW.