Browsing CDNN tonight, I came across this.

https://www.cdnnsports.com/sig...__SID=U#.Xoq-R9NKhAY

I can't believe this would work. Anyone know?

No. .45 ACP barrels won't fit in 9, 357, or 40 slides. You'd need a .45 ACP slide and recoil spring.

And the 9/40/357 FCU won't work with .45 ACP magazines, so you'd need a .45 ACP FCU too.

And the 9/40/357 grip modules won't work with .45 ACP magazines, so you'd need a .45 ACP grip module.

And 9, 40, or 357 magazines won't work with .45 ACP ammo, so you'd need a .45 ACP magazines too.


So basically, you'll need any entire new .45 ACP P320.


(Note that it's advertised as a replacement barrel, not a conversion barrel.)

Well, there goes that idea.

Silly thing is... The P250, from which the P320 was derived from, can go from 9mm to 45.

I have a P250 Compact in 9mm and a P250 Caliber X-Change kit in full size 45. The FCU works fine in both platforms.

But....


You can use a 9/.40/.357 slide, barrel, grip, mags, and ammo with a P320 .45 FCU.