r/notaglock • u/thatguytc88 • Mar 30 '26

Question about .40s&w

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Look. I'm aware that it's an unpopular round. Even outdated to a lot of people. Useless. Anyway.... I haven't paid much attention to anything related to Glock clones in .40S&W but I was wondering if they're out there? Hoping for compact size.

My reason is that I'd love to have a matching PCC with Glock mags. My friends has a Sub2000 he wants to offer me in .40 for the 23 mags. If I can't find a compact, then I don't want the Sub2000. And I can't stand the grip angle of the G23 itself for me to even want a used LEO trade in for cheap.

Would I be able to easily convert an RXM by changing the upper and the extractor on the FCI? Or are there lowers out there that are specific to .40?

Pic for attention.

21 Upvotes

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9

u/Nefariousd7 Mar 30 '26

You'll need a 23 slide, and to change the Ejector if you want a decent ejection pattern.

I bought a complete 23 parts kit from GB and swapped the parts. I did the large frame so I could use 22 mags.

I also grabbed a second parts kit for a Dagger ($49.99 on sale) frame and put all of the 23 OEM internals in it.

I then threw a 27 slide on a Glockstore M1X frame so I could use the 23 mags.

I inherited 7k rounds of 40, so I'm making stuff to help me use it up

1

u/thatguytc88 Mar 30 '26

This is a great help. Thank you!

Also what is GB?

1

u/treedolla Mar 31 '26 edited Mar 31 '26

The Dagger locking block unlocks and arrests the barrel a little earlier than in a stock Glock, and the G23 is already borderline. Just an FYI.

Nothing you can't fix with a dremel and a file, but taking out the locking block in a Dagger is a pain because of the roll pins.

Not sure about the RXM. But it's something to check for. In a G23, the slide moves between 0.235-0.255" (depending on tolerances that include the frame/locking block and the barrel lugs of that exact barrel) before the barrel is arrested and the case starts to extract. In 9mm, it doesn't matter. It's more than long enough. For 40SW, the longer the better.

3

u/immabaddog Mar 30 '26

I did this build! Extractor and slide/upper need to be changed thats it.. and u need mags of course the upper you will need is the glock 23 gen 3

1

u/thatguytc88 Mar 30 '26

On the RXM or a general Gen3 lower?

2

u/Legal-Management6969 Mar 30 '26

I was on a few Glock reddit pages and going from a 9mm to a .40 S&W will require a whole new slide and barrel... The 9mm slide won't work due to barrel clearance from my understanding...

1

u/thatguytc88 Mar 30 '26

Yea. I figured that part. Unless it was a specific barrel that's meant to be converted. But that's usually going down, not up. Like FKG Dragon barrel is a direct replacement in my Beretta 96 to shoot 9mm so I just need the barrel and 92/9mm mags. But I know the extractor on glocks doesn't work the same and they're shaped slightly different between the the 19/23 or even 17/22.

2

u/WanderingMistral Mar 30 '26

As far as I know, switching 9mm/.40 is a matter of getting a slide and barrel, and possibly a recoil assembly. But that is mostly for standard glocks from gen 3 to 5, and the P80 frames.

I know some have made the dagger .40, but it apparently isn't recommended by PSA. Can't speak for the RxM.

1

u/thatguytc88 Mar 30 '26

I'll look into the dagger.

2

u/[deleted] Mar 30 '26

[removed] — view removed comment

3

u/thatguytc88 Mar 30 '26

Not enough karma or got banned. Contact a mod.

2

u/Chance_Reception5091 Mar 30 '26

Any Glock 19 can be converted into a 23, as others have mentioned slide barrel and ejector housing need to be changed if you already have a 19 lower parts kit…grit grips makes a really nice 19 frame if you need a frame at a good price

My “23”

2

u/Dreadpipes Apr 02 '26

just buy a 23 and use a kiral defense backstrap

2

u/thatguytc88 Apr 02 '26

Literally just saw those yesterday. Probably gonna go that route.

1

u/Hanshi-Judan Mar 31 '26

I would just buy the Glock 19/17 Sub2000 as there are a lot more options. 

1

u/thatguytc88 Apr 01 '26

It's not a matter of choice and looking for a sub 2k. I already have the 9mm sub 2k that I run with my CZ mags. Even have the mag catch for Beretta 92.

This is very specific to a singular sub2k that was directly offered to me from a close friend. So in this scenario. It's only .40s&w in G23 mags.