Gen4 Glock 23 .40 to 9mm convertion

[IM_Lugger]

If I get a 9mm barrel for my G23 gen4 do I really need a G19 recoil spring assembly? Or would it still be reliable with original spring? Anyone tried it?

 

[sixgun1]

Your good to go, exchange barrels an go have fun.

 

[IM_Lugger]

Have you done it? I know that G19 has different RSA than 23.

 

[prproulx]

I would also like to hear from someone who has done it!

 

[G37]

I did it on a Gen3 (barrel and mags only). It works but I would occasionally get a failure to eject.

In addition to barrel swap, if you want it to be 100% you need to swap the following:
Trigger Housing (9mm)
Recoil Spring (9mm)
Extractor LCI 9mm
Spring Load Bearing LCI 9mm

...and of course use 9mm magazines.

All that and it should be 100% reliable IMO

 

[IM_Lugger]

I want to be able to change calibers 'on the go' so I wouldn't replace all those parts, but if I'm changing the barrel recoil spring is being removed anyways. I'd rather get one if that means smooth shooting vs clearing jams.

 

[G37]

Well, when you put it all together you'll see why failures rarely occur; the ejector on the 40S&W is contacting the very-edge of the 9mm brass.

However with that said, for cheap range plinking on the Go it is sweet (that was my intent as well).

 

[theycallmeike]

I have a Lonewolf 9mm barrel for my G22. I just swap the barrels and thats it. I've shot over 1000 rounds of 9mm and I've only had issues with 1 box of Finochi ammo that wasn't crimped enough. They kept jamming on the feed ramp but I got 3 boxes for free from an RCMP buddy so I wasn't complaining.

 

[IM_Lugger]

Is your G22 gen4 or 3? I'm curious how gen4 .40 spring handle 9mm ammo.

 

[theycallmeike]

Mines a gen 3..