Glock 20 10mm, 9mm Barrel Kit?

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Huntolive

Huntolive

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I'm new to Glocks and my only one is a Glock 20 and I don't really plan on getting others as I already have XDM or XDS in 9 mm 40 cal and 45 ACP.
When I traded for my glock 20 10 mm it came with a 22 long rifle conversion kit. I imagine there is a similar conversion kit or Barrel I can get 2 convert to a 9 mm as well.
Is that correct and where can I get one?
Has anyone done this?
How easy is it to do the conversions?
How effective can a Glock 20 be shooting 9 mm and what is the best conversion kit to get without spending over $250?
Is this a good idea why or why not?
 
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Huntolive said:
I imagine there is a similar conversion kit or Barrel I can get 2 convert to a 9 mm as well.
Is that correct and where can I get one?
Click to expand...
That is not correct
Has anyone done this?
Click to expand...
Yes they have and it didn't work well enough to keep it in production
How easy is it to do the conversions?
Click to expand...
If you really had the desire and the money to make it happen it would still be very difficult as
1. you couldn't use the 10mm slide as the extractor wouldn't be able to grab the smaller case rim
2. you couldn't use a 9mm slide as it wouldn't fit on the larger frame...you'd need a custom slide made
3. the springs would need to be rebalanced to the lessor recoil
4. 9 x 19mm wouldn't feed reliably from the 10mm magazine as the cartridge is too short
How effective can a Glock 20 be shooting 9 mm and what is the best conversion kit to get without spending over $250?
Click to expand...
you'd be looking at a cost likely 5 times that
Is this a good idea why or why not?
Click to expand...
See Above
 
So why then can there be an effective conversion for 22LR and not for 9mm?
It would seem all the reason given for why it wouldn't work would be exaggerated in the 22LR VS 10 mm as compared to 9mm vs 10 mm.

I am not talking about altering the Glock 20, I Like the Glock 20, I'm talking about a conversion kit to temporarily change out barrel/mags /slide. I have one for the Glock 20 for 22 LR conversion.
So why isn't there one for 9mm?
Why would 9mm be any worse/harder?
I mean if there isn't one there isn't , but if there is one for 22LR, why not for 9mm?
 
The .22 conversion kit you speak of is made of aluminum and is of a direct blowback design. That means that the force generates by the fired cartridge is the same for just about all the Glock frames. It is essentially a self-contained unit and they made the magazines to fit each grip frame size.

Is it possible to make a 9mm slide and barrel for the G20? Yes it is. Would it be worth the investment in prototyping and then R&D? No it wouldn’t. The tilting barrel design of the Glocks and most modern pistols is more intricate than you may think. They are balancing many different things such as slide mass, recoil spring power, magazine spring power, and length of slide travel.

You are better off picking up a used 9mm or .40 Glock and going from there.
 
There are Glock models that can handle multiple centerfire cartridge sizes like 9mm, .357 Sig, and .40 S&W. Some of the interchangeable barrels are made by Glock. Some other ones come from 3rd parties. Look up the Model 22 to see what I mean.
 
The frame of a Glock is cheap. The slide is where most of the (still not-much) incremental expense of making a Glock is. Setting aside any technical issue, why would Glock bother with making something that they'd then sell for 80+% of the value of the whole gun?

Just buy another Glock, or trade for the caliber you wish it were in.
 
rpenmanparker said:
There are Glock models that can handle multiple centerfire cartridge sizes like 9mm, .357 Sig, and .40 S&W. Some of the interchangeable barrels are made by Glock. Some other ones come from 3rd parties. Look up the Model 22 to see what I mean.
Click to expand...

What do those 3 cartridges all have in common?
 
The .357 Sig and .40 have the same case base size. They both work with the same extractor and ejector installed. The 9mm works because it is just a tad smaller in diameter. By changing the above mentioned parts out for the 9mm parts (and magazine) it works as well.
 
And they're all the same, or very similar, in length. 10mm is not. 10mm is similar in length to 45ACP and 38 super.

If you look at some guns that actually do support top-end swaps between "short" and "long" rounds, like Tanfoglios, you will see that they have to do some stuff to make that possible. For instance, the magazines for the short length rounds have a spacer welded into the back of them... the external magazine dimensions are the same as the long-action magazines, but the internal dimensions are smaller.

This might be worth dealing with for a steel-framed gun (particularly a gun that is often sold in markets with restrictive licensing/gun control where obtaining an additional serialized frame is very expensive and difficult) that has a lot of cost in it. It's not worth it for a plastic-framed gun. Buying a slide assembly for a Glock means buying a very high percentage of the value of the gun. Most people are just gonna buy another whole Glock. Glock doesn't want to discourage that, and the potential market/sales for a 3rd party isn't likely to be enough to recoup the costs and give a decent ROI.
 
Ok , thanks, I get it.

BTW I am happy with having 10 mm, I prefer that over 9mm, but was seeing if I had the flexibility to get a simple conversion kit to 9mm in case in a stressful scenario I couldn't get 10 mm ammo, and all that was available was 9mm.

I know some model Glocks have barrel switch outs for 40 mm and 9mm (G 26 maybe?)

What about 40 cal? Can the Glock 20 use a simple conversion kit to 40? (yet Another caliber I prefer over 9mm).
I do own 2 9mm but I see those as better for subcompact role, so I have XDs and G2C
 
Many people have shot 40 out of Glock 20's without any modification, or with just a recoil spring change (lighter). Reliability is variable. There's a risk of stuff building up at the front of the chamber making for chambering problems with the 10mm. I wouldn't endorse it, but it has been done.

As for your concern that "in case in a stressful scenario I couldn't get 10 mm ammo," I'm not sure what you mean... but during the last big panic, the ammo that was in shortest supply was 22 lr., 9mm, 223, and 45ACP, in about that order of scarcity. If by "stressful situation," you mean a bubble/scare situation, you might have an easier time finding 10mm than 9mm.
 
Taurus 617 CCW said:
You are better off picking up a used 9mm or .40 Glock and going from there.
Click to expand...
With so many 40S&W Glock police trade-ins available, I would suggest going with Glock 22 and using 40-9mm conversion barrel. Newer generation 40S&W Glock mags will even feed 9mm rounds reliably, so you only need to change out the barrel - https://www.wikiarms.com/guns?q=police+trade

Sportsman's Guide has Gen3 Glock 22 for $349 - https://www.sportsmansguide.com/pro...ment-trade-in?a=1950328&avad=211021_b15bd1881

I have Glock 22/23/27 and use KKM/Lone Wolf/Tactical Kinetics conversion barrels (Detailed differences of each barrel and pictures) - https://www.thehighroad.org/index.p...g-oal-col-for-reference.848462/#post-11068320

And you can pick up Tactical Kinetics conversion barrels for like $89 on sale - https://www.rainierarms.com/tactical-kinetics-glock-22-9mm-conversion-barrel-nitride/
 
I have a G20, G29, and G40. All work fine. My DW Sportsman 1911 in 10mm is fiddly and quite bullet sensitive as is my Kriss Vector. Glocks aren't my favorite but they ARE functional and reliable. The G40 is a fine shooter....
 
Elkins45 said:
He didn’t say what mags he was using. I would have thought 9mm would pop right out of an unmodified 10mm mag.
Click to expand...
I believe mag in the video was G20 mag.

I haven't used 9mm in G20 mag but 9mm works fine in newer generation mags. My Gen3 G22/23/27 mags work with 9mm and 40-9 conversion barrels.
 
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