Will my 9/357/40 FCUs (standard and X series)
work in a P320 45acp X Change kit?

Thanks in advance for your answers.

M.

The X Change kit I'm asking about is P250c 45acp. So I'm pretty sure it won't work with my P320 9/40/357 FCUs but I would still appreciate some replies.

Thanks,
M

A p250 exchange kit will not work with a P320 FCU, as the firing mechanism is completely different (hammer vs striker fired) an the guns use different slides and FCUs. The plastic grip modules will interchange in most cases, though.

As far as the P320 exchange kit in .45ACP is concerned, my understanding is that the .45 slide and mags will not work with a 9mm/.40/.357 FCU due to the dimensions of the .45 magazine, although I've never had all the materials from both together in one place to try it for myself.

Here's some more info: https://www.gunsamerica.com/di...up-to-45-acp-review/

Thanks.
That's what I thought.

A P320 .45 FCU will work with 9/357/40 slide, barrel, grip, mags. Extraction/ejection performance may suffer and Sig says don’t do it. I never had a problem when I did though.

But not the other way around. As noted, 9/357/40 FCU won’t accept a .45 mag