I finally found a P290 couple years ago and like it but it has a problem. Understand this is probably the least liked and least well-known SIG out there! One of the two magazines consistently has FTF even with Factory ball ammo. I couldn’t see any difference in the mags, so I swapped the springs, and it fixed the problem with the “bad” magazine. Now, the problem is trying to find a replacement mag spring for the defective one. I haven’t had any luck with Wolff, Fleabay or MGW. Does anyone know a source for new mag springs for the P290 .380 - or which other mag spring might work?

I didn’t even know it came in 380. Mine is a 9mm. It gets no love but it is a good gun. It’s heavy but it’s small.

I would think the 9mm mag spring would work fine.

This message has been edited. Last edited by: pedropcola,

I have a 380 and the 9mm and I agree with pedro that the 9 spring should work, worth a try anyway. I had Galloway put their trigger in my 380 and it made a world of difference for the better. I've got extra 380 mags if you ever need one.