P239 .40/.357 Sig

[DWATSON]

Hi folks,
If I want to convert my 239 from .40 SW to .357 Sig, would I need to swap out the recoil spring or just the barrel? I believe the .357 Sig mags will also feed/fire the .40’s, but not the other way around?

Thanks,
Dave in Newbury

 

[DPR]

Just a barrel swap. I've loaded .357 into my P239 .40mags and had zero problems. I did purchase some .357 mags a while back just because they were on sale for cheap.

 

[DWATSON]

Did they feed though? My .40 mags would load the .357 Sigs, but only fire the 1st round. They wouldn’t feed. The .357 mags went both ways though without a problem.

I was pretty sure I didn’t need a spring swap, mainly because I don’t have one!

Thanks for your help...