Can I change 9mm to .40

[theman2001]

Whats involved in swaping calibers from 9mm to .40?

Is it just a mag and barrel or is the porting in the slide or just the barrel?

[theman2001]

opps I think I awnsered my own question in the "Bar-Sto BARRELS READY FOR ORDERING!" thread.

[Old Coastie]

The only thing required would be to buy a whole new slide and barrel assembly for the pistol. I suspect you would also need new magazines. I don't believe you can even buy a new slide, as CZ-USA does not sell them. It would be cheaper to buy another complete pistol in 40 S&W. They sell for about $330 in my parts.

Good shooting,

Mike

[Walt-Sherrill]

You could take a .40 gun and have a custom barrel made for it, and that would work, but not the other was around.

As noted in other discussions, the headspace, extractor, and opening in the slide are wrong for swapping barrels on CZs.  

Bar-sto's barrels for the .40 S&W 75B-based guns can shoot 9mm because they adjust headspace and are made to work with the .40 extractor.  

Don't know if Bar-Sto makes barrels for the CZ-100, however.

(Older EAA guns often let you just swap barrels between the 9mm and .40 guns -- which share the same frame size; that is not the case with CZs.)

[Old Coastie]

Walt,

Bar-Sto does make barrels for the CZ100. I have one in 40 S&W, unported. The lockup is extremely tight. It is a real piece of work. I would guess the CZ100 versions would be the same as the barrels for other brands.

Good shooting,

Mike