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TSO 40 to 9mm easy as barrel, mags and GR spring(s)?


Jrcnky

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I didn't have to fit my cz custom barrel.  Dropped right in.  Has a bit of side to side play when slide is off, but it's locked in.  When I put slide on frame lockup is solid.  I did change the extractor to 9mm and got some 9mm mags.  Runs fine so far with about 50 test rounds through it.  Will shoot it more in the coming weeks.

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  • 3 weeks later...
16 hours ago, ohsevenflhx said:

Why change the barrel and magazines? Why not just load 40 minor and get a EGW red dot plate for 49$.

 

Cheaper to load 9mm and much less of a hassle than trying to find .40 brass.

 

That said, until the division is official I will be doing exactly what you suggested

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3 hours ago, CC3D said:

Cheaper to load 9mm and much less of a hassle than trying to find .40 brass.

 

That said, until the division is official I will be doing exactly what you suggested

Magazines and barrel for 2 more rounds doesn't sound worth it to me. I have all the 40 loading stuff. But I do understand the capacity part of it. 

 

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18 hours ago, ohsevenflhx said:

Magazines and barrel for 2 more rounds doesn't sound worth it to me. I have all the 40 loading stuff. But I do understand the capacity part of it. 

 

Pretty sure you can get up to 24 rounds in a 140mm cz mag- 23 at least. 

 

I pretty commonly find myself wishing I had an extra round or 2 on stages- 4 would make a considerable difference. We're talking about a capacity range where 1 or 2 extra rounds may mean the difference between requiring a reload and not on a given stage with a round count in the low 20's 

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3 hours ago, CC3D said:

Pretty sure you can get up to 24 rounds in a 140mm cz mag- 23 at least. 

 

I pretty commonly find myself wishing I had an extra round or 2 on stages- 4 would make a considerable difference. We're talking about a capacity range where 1 or 2 extra rounds may mean the difference between requiring a reload and not on a given stage with a round count in the low 20's 

The rune tactical springs/followers or the newer MBX springs/followers + henning base pads should get you up to 24+1 easily.

 

I run 23+1 with regular CZ tubes, TTI extensions, and grams springs/followers. Maybe after I break my TTI extensions again I'll pick up some MBXs or Hennings lol

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Has anyone had any success bending the lips of the .40 mags to match the 9mm opening?

 

In my location I can't get new mags, but I can use those I have...so modification to convert to 9mm would be much preferred if possible.

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1 hour ago, MuayThaiJJ said:

Only on the Glock 22 mags, the rest fed fine.

Methinks you may have that backwards, at least on CZ mags. I have several 40 CZ's (CZ75's and TSO) with factory mags and MecGar mags. Not a single one of those 40 mags will allow a 9mm to feed. Every single one of them, when you load a 9mm in them, the round will not stay in...pops right out.

I can, however, load a 40 in a 9mm CZ factory mag and have it load fine.

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Do you have the old style MecGar? Because those have different feed lip widths. But for a while now, the newer MecGar 40 and 9 have the same exact lips. This is true for Beretta and Tanfoglio mags too. There are a bunch of threads on it:

 

https://czfirearms.us/index.php?topic=52385.msg322450#msg322450

https://forums.brianenos.com/topic/231618-mecgar-sp01-40-mags-will-they-run-9mm/#comment-2584192

https://www.calguns.net/calgunforum/showthread.php?t=709330

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Yeah, I only had to do it for the Glock 22 mags (they were factory). But I did not have to modify the MecGar Beretta, CZ and Tanfo mags. I don't know if the factory TS 40 mags work for 9 (but recall hearing that they do). I still use my MecGar Beretta 40 mags for 9. I sold my 40 stuff for CZ and Tanfo a while ago.

Edited by MuayThaiJJ
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Gents, I loaded up some .40 minor and shot 50 rounds through the TSO today. Man is it a slick shooter. I might not even consider switching to 9mm after shooting that .40 minor. Definitely load some up and try it out before you go and spend 400 bucks on a new barrel and 9mm magazines!

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