Ken6PPC Posted August 19, 2018 Share Posted August 19, 2018 I have a G23 Gen 4 that I rarely shoot, and I want to try CO. I prefer 9mm, and was thinking of buying an aftermarket slide that is milled for an optic. My question is, what problems will I have if I buy a 9mm milled slide for a 19 to run on my G23 lower? Is there any problems ejecting 9mm's from a 40 frame? I know the ejector is shaped a little differently. I know I could just buy a MOS, and I may go that route if there are a lot problems adapting to a 9mm slide. I welcome your thoughts, opinions, and experiences, and thank you in advance! Link to comment Share on other sites More sharing options...
SyNaPsE Posted August 19, 2018 Share Posted August 19, 2018 You won't have any problems with the G23 frame if you get a complete upper and 9mm mags. That said, most I know just buy a conversion barrel and seem to have good luck even when using the .40 mags. Link to comment Share on other sites More sharing options...
dskinsler83 Posted August 19, 2018 Share Posted August 19, 2018 You should have no issues. Unless you see an issue with ejection I would not even change the ejector from the G23 frame. But depending on the types of deals you can find it can sometimes cost close to what another firearm would cost. Either way grab some 9mm mags, some extensions and rock and roll. Link to comment Share on other sites More sharing options...
dskinsler83 Posted August 19, 2018 Share Posted August 19, 2018 To add to that, Brownells had been having some sales on slides that they have cut already. Link to comment Share on other sites More sharing options...
Ken6PPC Posted August 19, 2018 Author Share Posted August 19, 2018 OK, another question... Do I have to get a Gen 4 slide, or will a Gen 3 slide work on my Gen 4 frame? Link to comment Share on other sites More sharing options...
dskinsler83 Posted August 20, 2018 Share Posted August 20, 2018 Yes a Gen3 slide will work just be aware that there will be a gap between the frame and slide due to the guide rod/recoil spring area differences. Does not affect function. Link to comment Share on other sites More sharing options...
Yoakam Posted January 2, 2019 Share Posted January 2, 2019 A complete slide will cost you nearly as much as a new gun. I would just buy a conversion barrel. I have a 9mm conversion from lone wolf that I just use for plinking around. I also have a conversion barrel for a 27 that I bought from KKM...but I also changed out all of the internals to be 9mm since I use it as a carry gun and want it to be 100%. Neither have ever failed to date though. Link to comment Share on other sites More sharing options...
Ken6PPC Posted January 3, 2019 Author Share Posted January 3, 2019 Update: I bought a Venom red dot sight, a Gen 3 model 19 milled slide and barrel from Midway, a Gen 3 to Gen 4 adapter plate for the recoil shield, and a Gen 3 recoil spring. Installed it on my G23 Gen4 frame, and it worked pretty well. I did have erratic ejection issues, sometimes taking a case to the face, until I changed the ejector from a 23 to a 19. That improved the ejection pattern. All is working well now, and I have about the same $ in the new slide and red dot sight as I would have put into a new pistol, not including the red dot. I am happy with it. Link to comment Share on other sites More sharing options...
HCH Posted January 3, 2019 Share Posted January 3, 2019 Too bad that’s not legal for CO. Link to comment Share on other sites More sharing options...
Paul49 Posted January 3, 2019 Share Posted January 3, 2019 15 minutes ago, HCH said: Too bad that’s not legal for CO. Please elaborate. Link to comment Share on other sites More sharing options...
dskinsler83 Posted January 3, 2019 Share Posted January 3, 2019 Technically it is because you have changed the caliber from a .40 S&W to a 9x19 which is not the “original” caliber of the firearm as manufacturered. You are gonna be hard pressed for anyone to challenge that though so in reality you will probably be just fine. But yes according to the rules you can not take one firearm and change its caliber for use in Production/CO division as it was not “manufactured originally” as that caliber. Link to comment Share on other sites More sharing options...
HCH Posted January 3, 2019 Share Posted January 3, 2019 1 minute ago, Paul49 said: Please elaborate. Appendix D7 21.3: Aftermarket slides and barrels must must be the same length and caliber as the original Link to comment Share on other sites More sharing options...
HCH Posted January 3, 2019 Share Posted January 3, 2019 Just now, dskinsler83 said: Technically it is because you have changed the caliber from a .40 S&W to a 9x19 which is not the “original” caliber of the firearm as manufacturered. You are gonna be hard pressed for anyone to challenge that though so in reality you will probably be just fine. But yes according to the rules you can not take one firearm and change its caliber for use in Production/CO division as it was not “manufactured originally” as that caliber. Just another rule that makes zero sense. Link to comment Share on other sites More sharing options...
Kixx Posted January 3, 2019 Share Posted January 3, 2019 3 hours ago, HCH said: Just another rule that makes zero sense. Yeah this is a dumb rule. I really expected it to be changed with the 2019 update but it’s still there. Link to comment Share on other sites More sharing options...
HCH Posted January 3, 2019 Share Posted January 3, 2019 4 hours ago, Kixx said: Yeah this is a dumb rule. I really expected it to be changed with the 2019 update but it’s still there. I was hoping for an update as well. Maybe if we all email NROI we can get it changed... Link to comment Share on other sites More sharing options...
HoMiE Posted January 3, 2019 Share Posted January 3, 2019 (edited) He changed the slide and the frames are the same so he has the correct caliber for that slide . The issue with same Caliber has to do with 40 slide To 9 barrel which give you a bull barrel effect. The frames are the same so nobody would ever know. Edited January 3, 2019 by HoMiE Link to comment Share on other sites More sharing options...
Kixx Posted January 3, 2019 Share Posted January 3, 2019 1 minute ago, HoMiE said: He changed the slide and the frames are the same so he has the correct caliber for that slide . The issue with same Caliber we has to do with 40 slide To 9 barrel which give you a bull barrel effect. The frames are the same so nobody would ever know. The rule says the caliber must be the same as the original slide for that model. As for that last bit, just because nobody would ever know doesn’t mean it’s not against the rules. Link to comment Share on other sites More sharing options...
HoMiE Posted January 3, 2019 Share Posted January 3, 2019 19 minutes ago, Kixx said: The rule says the caliber must be the same as the original slide for that model. As for that last bit, just because nobody would ever know doesn’t mean it’s not against the rules. He purchased a completely new 9 slide and 9 barrel, that is the model. The frame is irrelevant. Link to comment Share on other sites More sharing options...
RJH Posted January 3, 2019 Share Posted January 3, 2019 1 hour ago, HoMiE said: He purchased a completely new 9 slide and 9 barrel, that is the model. The frame is irrelevant. Wouldn't frame serial # show up as a 40 caliber, making the swap illegal for Co and production? Not that any is ever going to check or really care, but... Link to comment Share on other sites More sharing options...
HoMiE Posted January 3, 2019 Share Posted January 3, 2019 (edited) 11 minutes ago, RJH said: Wouldn't frame serial # show up as a 40 caliber, making the swap illegal for Co and production? Not that any is ever going to check or really care, but... The rulings in the past have let the frame from one approved gun go on the slide of another approved gun. The issue that everybody threw a fit about was the conversion barrels calling it a “bull barrel” and therefore a competitor advantage. Today with bull barrel options in the X5 and CZ bull Shadow, and the constant emails to NROI and the ability to regulate all the possible combinations ofgun parts, the OP is ok since he used an approved frame and a approved slide. thats how the CZ shadow came about using the frame from one variant so why would it be different for a glock which the frame from the models he is using is identical? Edited January 3, 2019 by HoMiE Link to comment Share on other sites More sharing options...
Ken6PPC Posted January 3, 2019 Author Share Posted January 3, 2019 (edited) I think I will start to worry about this when I think I am getting close to winning the Nationals... Edited January 3, 2019 by Ken6PPC spalin... Link to comment Share on other sites More sharing options...
HoMiE Posted January 3, 2019 Share Posted January 3, 2019 2 minutes ago, Ken6PPC said: I think I will start to worry about this when I think I am getting close to winning the Nationals... No need to worry, you are within the rules and rulings that have been dished out. Link to comment Share on other sites More sharing options...
RJH Posted January 3, 2019 Share Posted January 3, 2019 3 minutes ago, HoMiE said: The rulings in the past have let the frame from one approved gun go on the slide of another approved gun. The issue that everybody threw a fit about was the conversion barrels calling it a “bull barrel” and therefore a competitor advantage. Today with bull barrel options in the X5 and CZ bull Shadow, and the constant emails to NROI and the ability to regulate all the possible combinations ofgun parts, the OP is ok since he used an approved frame and a approved slide. thats how the CZ shadow came about using the frame from one variant so why would it be different for a glock which the frame from the models he is using is identical? Cool, thanks for clarifying Link to comment Share on other sites More sharing options...
HoMiE Posted January 3, 2019 Share Posted January 3, 2019 I bet if you email NROI they’d say you are good. I would even say they don’t care about the once forbidden colored frames of G17 being put on G34 slides that some people at Area or sectional got bumped to Open because glock never made a green or FDE framed G34. Link to comment Share on other sites More sharing options...
Kixx Posted January 3, 2019 Share Posted January 3, 2019 (edited) 5 hours ago, HoMiE said: The rulings in the past have let the frame from one approved gun go on the slide of another approved gun. The issue that everybody threw a fit about was the conversion barrels calling it a “bull barrel” and therefore a competitor advantage. According to USPSA, all past rulings have been rolled into the 2019 rule book. All I see that addresses this is Appendix D7 21.3: "You may replace the slide with an OFM or aftermarket slide of the same length, contour and caliber as the original slide for that model of gun." That model of gun is a Glock 23. Throwing a Glock 19 slide/barrel on it does not magically turn it into a Glock 19. Again, this rule is dumb and needs changed. I understand it stemmed from the conversion barrel issue and shouldn't matter anymore. However, the rules pretty clearly state you cannot change the caliber of your gun. If you can find something in the rule book that says otherwise, please provide it. If someone wants to play the "its not against the rules if nobody finds out" game, that's their deal. I'm not about that. Emailing DNROI may very well get it changed. They've "adjusted" bigger things before.. Edited January 3, 2019 by Kixx Link to comment Share on other sites More sharing options...
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