Author Topic: TSO .40SW conversion to 9mm  (Read 440 times)

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Offline M4rc310

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TSO .40SW conversion to 9mm
« on: March 24, 2020, 07:21:37 PM »
I searched on this topic before posting the question and found some comments towards confirmation of this - but would like a definitive answer before I pull the trigger and buy a 9mm TS barrel.

Can I have a confirmation here that a TS 9mm barrel (PN 047004940706) can be fitted to a TSO chambered in 40SW?  And that all I need is the barrel and a gunsmith to do the fitting to me?  And no other part...

Thank you guys!
Marcelo.

Online aandabooks

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Re: TSO .40SW conversion to 9mm
« Reply #1 on: March 24, 2020, 07:31:06 PM »
Maybe.  Different breach face between the two calibers.  All of my conversions have been using complete slides.  I know it works with conversion barrels on Glocks and M&Ps but not sure that it will on a CZ since they are not selling conversion barrels but replacement barrels. 

I could try it for you tomorrow when I go to the range and let you know.

Offline M4rc310

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Re: TSO .40SW conversion to 9mm
« Reply #2 on: March 24, 2020, 07:45:28 PM »
Thank you! Yes, the breach faces are different and in my research I've found out that for that exact reason one can only do a 9mm barrel to a 40SW slide, but not the other way around.

This video shows an individual just trying that, without swapping the slides, just barrels... And he did not even do any fitting.  Which I believe it was just luck considering barrels are hand fitted to each slide.

https://youtu.be/FHXvA4H_Du4?t=7

Offline eastman

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Re: TSO .40SW conversion to 9mm
« Reply #3 on: March 24, 2020, 09:06:14 PM »
I've done that conversion with a .40 cal SP-01 Tactical to run as a 9mm. That direction works. .40cal barrel doesn't work in a 9mm slide (breechface is too small).
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Offline M4rc310

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Re: TSO .40SW conversion to 9mm
« Reply #4 on: March 24, 2020, 09:54:46 PM »
Ok, great - the last confirmation I need is then that the TS barrel is the same as the TSO.  I couldn't even find a TSO barrel on the CZ catalog...

Offline scroadkill

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Re: TSO .40SW conversion to 9mm
« Reply #5 on: March 25, 2020, 04:24:43 AM »
the barrel, perhaps an extractor, and magazines... probably want a 10-11# recoil spring for 9mm vs #12-14 for 40

I did the conversion and it worked fine after I got the extractors worked out.  the barrel may need fitting.

Offline George16

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Re: TSO .40SW conversion to 9mm
« Reply #6 on: March 25, 2020, 08:48:37 AM »
Ok, great - the last confirmation I need is then that the TS barrel is the same as the TSO.  I couldn't even find a TSO barrel on the CZ catalog...

They’re the same. I bought a spare TS barrel for my from Midway. It was on clearance for $100 at the time. They still have them on sale for $123.

Offline M4rc310

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Re: TSO .40SW conversion to 9mm
« Reply #7 on: March 25, 2020, 12:22:56 PM »
They’re the same. I bought a spare TS barrel for my from Midway. It was on clearance for $100 at the time. They still have them on sale for $123.

I see them at $152.99 at Midwayusa - where do you see them for $123?
https://www.midwayusa.com/product/1004262723?pid=894075

Offline George16

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Re: TSO .40SW conversion to 9mm
« Reply #8 on: March 25, 2020, 12:58:25 PM »
They’re the same. I bought a spare TS barrel for my from Midway. It was on clearance for $100 at the time. They still have them on sale for $123.

I see them at $152.99 at Midwayusa - where do you see them for $123?
https://www.midwayusa.com/product/1004262723?pid=894075

I guess the price went up again. It’s back to its original price. Sorry about that.

I actually bought two when it was on clearance last month. I had one tapped for M14 x 1 thread for use as a third barrel for my czechmate which I just sent for reaming to 1.169”.

Offline Steelerfan

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Re: TSO .40SW conversion to 9mm
« Reply #9 on: March 26, 2020, 03:33:20 PM »
A buddy of mine has done the 9mm barrel in the TSO .40 frame/slide; however, its my understanding that this will not work in reverse.

Offline M4rc310

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Re: TSO .40SW conversion to 9mm
« Reply #10 on: March 26, 2020, 10:37:52 PM »

I guess the price went up again. It’s back to its original price. Sorry about that.

I actually bought two when it was on clearance last month. I had one tapped for M14 x 1 thread for use as a third barrel for my czechmate which I just sent for reaming to 1.169”.

No problem -  I ordered the barrel, and now just need to wait for late shipping with all this craziness about the COVID-19.   I also realized the mags are not interchangeable, so I will need to buy some CZ75 mags for 9mm too.

Online joedirt199

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Re: TSO .40SW conversion to 9mm
« Reply #11 on: March 26, 2020, 11:02:25 PM »
Yup can use .40 in 9mm mags but not 9mm in .40.
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Offline coolbox

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Re: TSO .40SW conversion to 9mm
« Reply #12 on: March 27, 2020, 02:41:26 AM »

No problem -  I ordered the barrel, and now just need to wait for late shipping with all this craziness about the COVID-19.   I also realized the mags are not interchangeable, so I will need to buy some CZ75 mags for 9mm too.

I hope you ordered CZ 75 TS mags, and not the standard CZ75 mags. These are different.
Also, I recall this being discussed here, that the .40 mags work with 9mm, and if I m not mistaken, they work the otherway round as well, only the capacities change..
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Online timetofly

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Re: TSO .40SW conversion to 9mm
« Reply #13 on: March 27, 2020, 07:38:14 AM »
As far as magazines go, I use the CZ P/N 11160 which is "supposedly" for the SP-01/ShadowII 9mm.  The magazines are marked side with witness marks for 9mm and 40 on the other side.  I have not had any issues with feeding either of the cartridges.  I buy this P/N when I buy new magazines.

Hope this helps

Offline M4rc310

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Re: TSO .40SW conversion to 9mm
« Reply #14 on: March 27, 2020, 08:56:33 AM »
I hope you ordered CZ 75 TS mags, and not the standard CZ75 mags. These are different.
Also, I recall this being discussed here, that the .40 mags work with 9mm, and if I m not mistaken, they work the otherway round as well, only the capacities change..

Thank you for the heads up - I did not order the mags yet.  I will wait until I can make sure the barrel fitting will be successful.   Yes, I know the mags are different, and unfortunately the Cz-75 TS ones are way more expensive :)

 

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