Jrcnky Posted January 11, 2023 Share Posted January 11, 2023 Feel like it's a yes, but want to dbl check before buying on CZ Custom. A TSO 40 to 9mm conversion only requires a barrel swap, 9mm mags, and lighter recoil spring, and maybe extractor, yes or no? Thanks! Link to comment Share on other sites More sharing options...
himurax13 Posted January 12, 2023 Share Posted January 12, 2023 2 hours ago, Jrcnky said: Feel like it's a yes, but want to dbl check before buying on CZ Custom. A TSO 40 to 9mm conversion only requires a barrel swap, 9mm mags, and lighter recoil spring, and maybe extractor, yes or no? Thanks! Yes, but you could also tune the .40 extractor to work on the 9mm barrel as well. Link to comment Share on other sites More sharing options...
aandabooks Posted January 12, 2023 Share Posted January 12, 2023 It is easier to just buy a complete upper. Slide one off and the other right on. A barrel from CZ will have to be fitted to the slide of your gun. Not difficult but easy to screw up. Link to comment Share on other sites More sharing options...
CC3D Posted January 12, 2023 Share Posted January 12, 2023 Was going to make the same post today- with the limited optics changes coming soon I imagine more than a few TSO 40 owners will be looking to make this change. I know I am! Link to comment Share on other sites More sharing options...
aandabooks Posted January 12, 2023 Share Posted January 12, 2023 I just put a complete 9mm upper for sale here and on Facebook. I really don't have any interest in shooting SA optics. Link to comment Share on other sites More sharing options...
CC3D Posted January 12, 2023 Share Posted January 12, 2023 22 minutes ago, aandabooks said: I just put a complete 9mm upper for sale here and on Facebook. I really don't have any interest in shooting SA optics. I think there is an appeal to spending 200 on a barrel instead of 700 on an entire slide. If I have to take the slide stop out it's not much more trouble to just swap the barrel while I'm at it. Link to comment Share on other sites More sharing options...
aandabooks Posted January 12, 2023 Share Posted January 12, 2023 7 minutes ago, CC3D said: I think there is an appeal to spending 200 on a barrel instead of 700 on an entire slide. If I have to take the slide stop out it's not much more trouble to just swap the barrel while I'm at it. This is true. As long as you can fit a barrel yourself then it is a good option. When I want to shoot .357sig out of my TSO, I just have the barrel and didn't buy another .40 slide to hold that barrel. Link to comment Share on other sites More sharing options...
GeneBray Posted January 12, 2023 Share Posted January 12, 2023 Case dimensions, specifically rim thicknss, rim diameter, and base diameter, of 9mm Luger and .40 S&W are diffierent albeit close. This may cause feeding and/or extraction problems. Seem to recall some who did what you are asking about without issue; I do not recall the specific firearm however.. If I wanted to do what you propose, I'd get a complete 9mm slide. Link to comment Share on other sites More sharing options...
Superkaratemonkeyfighter Posted January 12, 2023 Share Posted January 12, 2023 I With they would make there slides barrels and frames more available for purchase. Link to comment Share on other sites More sharing options...
GeneBray Posted January 13, 2023 Share Posted January 13, 2023 Suspect it is so they can sell more complete guns.... Link to comment Share on other sites More sharing options...
Jrcnky Posted January 15, 2023 Author Share Posted January 15, 2023 On 1/11/2023 at 9:17 PM, aandabooks said: It is easier to just buy a complete upper. Slide one off and the other right on. A barrel from CZ will have to be fitted to the slide of your gun. Not difficult but easy to screw up. I thought I had read that if you go complete slide that you have to fit slide to frame, which seems like more work than just fitting barrel. I could be wrong though. Link to comment Share on other sites More sharing options...
Jrcnky Posted January 15, 2023 Author Share Posted January 15, 2023 On 1/11/2023 at 9:28 PM, CC3D said: Was going to make the same post today- with the limited optics changes coming soon I imagine more than a few TSO 40 owners will be looking to make this change. I know I am! this is exactly why I'm asking. I shoot CO more now and this TSO has just really been sitting in safe for about two years. This new division gives me a reason to take it back out if it's as easy as a barrel and mag swap. Link to comment Share on other sites More sharing options...
aandabooks Posted January 15, 2023 Share Posted January 15, 2023 2 hours ago, Jrcnky said: I thought I had read that if you go complete slide that you have to fit slide to frame, which seems like more work than just fitting barrel. I could be wrong though. Mine did not require any fitting. Slides right on. Link to comment Share on other sites More sharing options...
aandabooks Posted January 15, 2023 Share Posted January 15, 2023 2 hours ago, Jrcnky said: this is exactly why I'm asking. I shoot CO more now and this TSO has just really been sitting in safe for about two years. This new division gives me a reason to take it back out if it's as easy as a barrel and mag swap. Do you already have your .40 slide milled for an optic? I don't have mine milled but if the 9mm slide does not sell then I might go that route as well and send it out to get it milled then put it back in the safe since I mainly shoot open but know it is there if I want to play in this new CO division. Link to comment Share on other sites More sharing options...
Jrcnky Posted January 15, 2023 Author Share Posted January 15, 2023 (edited) 2 hours ago, aandabooks said: Do you already have your .40 slide milled for an optic? I don't have mine milled but if the 9mm slide does not sell then I might go that route as well and send it out to get it milled then put it back in the safe since I mainly shoot open but know it is there if I want to play in this new CO division. Yeah this new division is appealing. no optic cut yet, but plan to at some point soon after I figure out this 9mm barrel thing. Edited January 15, 2023 by Jrcnky Link to comment Share on other sites More sharing options...
codemonkey001 Posted January 18, 2023 Share Posted January 18, 2023 I had to fit my barrel, which is pretty tedious, but easy. Mine works without having to touch the extractor. I did use 9mm mags for it but did try a 40 mag (not fully loaded) and it worked surprisingly. I didn’t change the spring either. But my 40 spring is pretty well used and I should probably change it. Link to comment Share on other sites More sharing options...
Kneedtospeed Posted January 23, 2023 Share Posted January 23, 2023 The 40 slide and extractor work 100% reliably, with no mods, shooting a 9mm switch barrel. Many thousands of rounds in competition, and never a single failure here. Its a simple procedure to hand fit the barrel, and get the 9 mags. Springs, tune to load. Link to comment Share on other sites More sharing options...
WildPete Posted January 23, 2023 Share Posted January 23, 2023 Here's some info when I did put a 9mm barrel in my .40. Link to comment Share on other sites More sharing options...
Neomet Posted January 25, 2023 Share Posted January 25, 2023 I've done this as well. Needed to do some minor fitting of the barrel, 9mm mags, and the 9mm extractor. Maybe the 40 would work, I never tried it. I did have to tune my mag lips a bit to get 100% reliability. Used the gun for Limited major with the 40 and 3 gun with the 9mm. I just sent the slide off to be milled for an optic so I can use it either in LO if that happens or Open minor if not. I am not a threat to the top 10 no matter what and I so love the feel and trigger of this gun. Link to comment Share on other sites More sharing options...
CC3D Posted February 5, 2023 Share Posted February 5, 2023 Can anyone comment on the likelihood of having to do fitting with a 9mm barrel in a 40 slide? I've heard some say they've needed to do fitting and others say the barrel drops in. I'm assuming luck of the draw. For those who had to fit the barrel how difficult is it to learn/ screw up? Trying to decide if I should have a gunsmith do it or attempt to tackle it myself. Link to comment Share on other sites More sharing options...
Kneedtospeed Posted February 5, 2023 Share Posted February 5, 2023 You’re Lucky if it Doesn’t drop right in, and needs minor fitting. That will assure, well, a better fit. Simple as can be with a fine file. Go slow, & check fit often. Use Dykem, or even a sharpie, to slowly take down the high spots. It’s a simple process that you can def do yourself. Going slow is still faster than dropping off and picking up, and nobody cares about your stuff as much as You do. Go Slow Link to comment Share on other sites More sharing options...
CC3D Posted February 6, 2023 Share Posted February 6, 2023 21 hours ago, Kneedtospeed said: You’re Lucky if it Doesn’t drop right in, and needs minor fitting. That will assure, well, a better fit. Simple as can be with a fine file. Go slow, & check fit often. Use Dykem, or even a sharpie, to slowly take down the high spots. It’s a simple process that you can def do yourself. Going slow is still faster than dropping off and picking up, and nobody cares about your stuff as much as You do. Go Slow I figured. Any guides anywhere on the process someone can point me to? Link to comment Share on other sites More sharing options...
midatlantic Posted February 12, 2023 Share Posted February 12, 2023 (edited) I purchased a 9 mm TSO2 barrel for my new 40 smith and Wesson TSO2 from CZcustom. (I'm just too curious for my own good.) It is their in-house barrel I presume, as it has their stamp on it. Went in with no problem and I shot 40 rounds the other day using federal Syntech 9 mm. Worked fine. I’ll post some photos of the two barrels in a bit. so, the black one is the factory .40 and the silver is the CZcustom 9 mm. There are differences, as you see, but those don't seem to pose a problem. The metallic "click" produced when the slide is installed on the frame, as you line up the lines for the slide stop, sounds a bit different. If anything changes will advise. FYI it shot the Federal 150 grain VERY softly. Edited February 12, 2023 by midatlantic Link to comment Share on other sites More sharing options...
CC3D Posted February 13, 2023 Share Posted February 13, 2023 Interesting, top of the chamber looks different. Appears to not have the barrel hood extending from the back? Link to comment Share on other sites More sharing options...
midatlantic Posted February 13, 2023 Share Posted February 13, 2023 yep. the CZcustom is solid, w a longer chamber, so to speak, cause it doesn't have the hood;. expensive to cut, id think. Link to comment Share on other sites More sharing options...
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