Drop in 9mm barrel for G22 question?

Anchorite

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Looking seriously at a CDNN drop-in 9mm barrel for my G22.3. Anyone have one of these barrels? Those that have converted their 40 Glock to 9mm…do I have to change out my extractor? I do have 9mm mags for use in the G22.
 
I used a LWD 40-9 conversion barrel in my 31 (357SIG, basically a necked down 40). Ran fine with the stock ejector/extractor using 17 mags.
 
My G22 conversion barrel is from Lone Wolf.

I use 9mm magazines, but I've never changed the extractor.

It works fine, zero problems.

This has been my experience with converting my Glock 22 Gen 2 to 9MM. Same Lone Wolf barrel, nothing else changed, including using both 40 and 9MM magazines. I have both barrels on my CCW, counts as one gun.
 
I often drop in a Storm Lake 9mm conversion barrel in my Gen 3 G27. I don't change the extractor, and it runs fine. Most of the time I use a .40 caliber magazine as well. I have a Gen 4 G22 that I put a threaded Swenson brand 9mm barrel in, and I did change the extractor to 9mm, mostly for a project, it runs well too. I know those are not the brands of barrel that you're looking at, but are my examples to offer. I think both were bought on closeout from Midway.
 
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I used a Lone Wolf conversion barrel. Only had to change the barrel and use 9mm mags. Ran real good.

WB
 
I also went Lone Wolf for a Glock 22 for a .40 to 9mm swap. I did do the extractor switch-out for a 9mm one, it takes a couple of minutes and allows you the excuse to clean the system out. (My gun was a police trade-in, so all the springs got replaced anyway.) This isn’t always needed, lots of guys don’t do the extractor swap and shoot for years with no issues.

I also use Glock 17 mags and leave the original .40 mags for when I swap it all back and shoot it as a .40. :D

Stay safe.
 
Make sure you get a CONVERSION barrel.

I found out the thing about the difference between a straight replacment barrel and a conversion barrel in the Glock family the hard way.

A straight 9mm barrel - such as the barrel from a Glock 17 stuck into a Glock 22 will be malfunction city. A Glock 17 barrel will be the wrong outside diameter to be used with a Glock 22 slide.

I have a Rock Slide USA 9mm conversion barrel in a Glock 22. It works fine with 124-grain ammo. But it hates most 115-grain ammo. Changing the extractor to a 9mm extractor made no difference in how the gun reacted to different bullet weights. I tried changing the weight of the recoil spring too. Made no difference. Still hated 115-grain ammo.
 
Looking seriously at a CDNN drop-in 9mm barrel for my G22.3. Anyone have one of these barrels? Those that have converted their 40 Glock to 9mm…do I have to change out my extractor? I do have 9mm mags for use in the G22.

... no idea who makes the CDNN barrels. But at $90….seems too cheap to pass up.
I have used 40-9mm conversion and 40S&W aftermarket/match barrels from KKM/Lone Wolf/Bear Creek Arsenal/Tactical Kinetics for my Gen3 Glock 22/23/27.

They were all drop-in without need for any fitting and worked reliably. Factory 40S&W extractors/ejectors also worked well to reliably extract/eject 9mm cases (Years back with early generation 3 40S&W ejector face angle caused spent brass to face issue but this has been addressed by Glock with change in ejector face angle to also address when using conversion barrels with 9mm). They have all been reliable with Glock 17/Magpul magazines and newer generations of Glock 40S&W magazines with flat front mag followers have also worked well as long as spring tension didn't get too worn.

Like AR receivers, many conversion barrels are manufactured by OEM (Original Equipment Manufacturers) with vendors name/logo engraved or just sold under different brand with same caliber/conversion barrel engraving. Bear Creek Arsenal and Tactical Kinetics are both OEM barrel manufacturers who sell barrels to others for branding.
CDNN $80 threaded and straight fluted conversion barrel for Glock 22 has MPN convention of "G22FTCON" and lists the manufacturer as "Original Equipment" - https://www.cdnnsports.com/gun-part...2-40s-w-stainless-barrel-fluted-threaded.html

I am guessing here but Tactical Kinetics has "Original Equipment" page on their website and could be sourcing for CDNN or it could be BCA barrel (Marking on top of barrel do seem similar though) - https://tacticalkinetics.com/original-equipment-manufacturer/

I have no idea who makes the CDNN barrels
You could always call CDNN and ask. ;)



Barrel Twist Rate: Over the decades, Glock conversion barrels have settled down to two different groups by barrel twist rates: 1:16 more common with match barrels and 1:10 more common with Glock's 1:9.84 twist rate.

Decades back when Glock 40-9mm conversion barrels initially came out, shooting lubed lead bullets was common practice and slower 1:16 twist rates was more compatible with lead bullets (No leading of barrel) as faster 1:10/1:9.84 twist rate barrels were more prone to strip lead from barrel as bullet traveled down the bore. With lead bullets, 1:16 twist rate conversion barrels with square cut land/groove rifling also produced greater accuracy than factory Glock barrels with smooth rounded "6-hexagonal" rifling ("5-pentagonal" rifling for .45ACP Glocks) and even slower KKM barrels with 1:20 twist rate produced slightly smaller groups than my 1:16 twist rate Lone Wolf barrels.

In recent years, more and more companies are using 1:10 twist rate and I only use jacketed/plated bullets with Tactical Kinetics conversion barrel with 1:10 twist rate. (I use all types of bullets including lead/coated lead bullets in BCA/KKM/Lone Wolf barrels)

Wilson Combat initially offered Glock barrels with 1:10 twist rate but has now changed to slower 1:16 twist rate - https://wilsoncombat.com/accessories/parts-for-other-models/parts-for-glock/glock-barells.html

KKM now offers standard 1:16 twist rates on their barrels but offers custom twist rate - https://kkmprecision.com/faqs/


Leade length / Reaming of rifling: As far as I know, barrels are manufactured first by hammering the rifling through the bore then leade/freebore are cut or reaming of rifling is done to allow different amount of bullet nose/ogive to be inserted into the bore before contacting start of rifling.
  • KKM conversion barrel with generous cut leade - This is most amount of leade/freebore cut into bore I have seen that allows 115/124 gr FMJ/RN longer than SAAMI max of 1.169" OAL and even longer 9mm Major rounds to "plunk" and part of reasons why I considered for Glock 22 (40-9mm conversion barrels have thicker chamber/barrel wall for higher pressure 9mm Major loads). Link lists max/working OALs that will work with various bullets (For comparison, RMR 124 gr FP MW max/working OAL at 1.150" and JHP MPR at 1.115") - https://www.thehighroad.org/index.p...g-oal-col-for-reference.848462/#post-11068318
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  • Lone Wolf conversion barrel shows slower 1:16 twist rate (Same for Bear Creek Arsenal) - Picture below shows Lone Wolf Glock 23 conversion barrel that did not come reamed (Which produces greater accuracy likely from less gas leak from shorter bullet jump through leade to start of rifling). My Glock 22 and 27 conversion barrels along with BCA Glock 22 conversion barrels (I bought 2 BCA like 2 KKM barrels as backup) came reamed with cut leade/freebore not as long as KKM but long enough to allow 115/124 gr FMJ/RN to SAAMI max of 1.169" and link lists max/working OALs that will work with various bullets for unreamed Lone Wolf barrel (For comparison, RMR 124 gr FP MW max/working OAL at 1.075" and JHP MPR at 1.040") - https://www.thehighroad.org/index.p...g-oal-col-for-reference.848462/#post-11068321
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According to a friend who worked for Glock, he recomended the Lone Wolf conversion barrel, and said that it MAY be necessary to change the EJECTOR (not extractor). He also said that you would know almost immediately if this was going to be required. Hope this helps.
 
According to a friend who worked for Glock, he recomended the Lone Wolf conversion barrel, and said that it MAY be necessary to change the EJECTOR (not extractor). He also said that you would know almost immediately if this was going to be required.
Yes, you would know "immediately" as spent case/brass flew into your face. 😆

This was an issue with early Gen3 40S&W models (With 40S&W and 40-9mm conversion barrels) and since has been addressed by Glock with reshaped ejector face angle. 👍

Years back with early generation 3 40S&W ejector face angle caused spent brass to face issue but this has been addressed by Glock with change in ejector face angle to also address when using conversion barrels with 9mm.
I have Gen3 Glock 22/23/27 and various KKM/Lone Wolf/Bear Creek Arsenal/Tactical Kinetics 40-9mm conversion/40S&W barrels and spent case/brass eject to the right of my face around 4-5 o'clock position.
 
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Yes, you would know "immediately" as spent case/brass flew into your face. 😆

This was an issue with early Gen3 40S&W models (Using 40S&W and 40-9mm conversion barrels) and since has been addressed by Glock with reshaped ejector face angle. 👍
I guess that makes sense, seeing as the timeframe of the conversation was just as Gen 4 was coming out, as I recall.
 
I have lone wolf 40-9 conversion barrels for a Glock 27, 23, and 35. And I’ve used them for 3gun comps.

I’ve not changed springs or extractors

I’ve shot a few thousand 9mm rounds

9mm mags reduce malfunctions

The lone wolf barrels have a smaller chamber, factory ammo works good, reloads, depending on brass, work great. I’ve had a few reloads get stuck in the smaller chamber (Tula brass)

It seems the case wall on Tula and another brand I can’t remember is thick enough that the Rocky Mountain reloading fmj bullets and case wall are larger in diameter than the forward end of the chamber,

The gun goes almost all the way into battery and locks up. I had to punch the slide against a table to clear the round. Tula brass doesn’t pass the “plunk” test in the lone wolf barrels for me, but my gen 5 Glock 17 eats them
 
I’ve had a G17 for a few years, but I couldn’t ignore the cheap police surplus G22’s. Ended up getting a like new G22 gen4. While I like the gen3 grip on my G17, I find I really like the gen4 grip treatment, and also find it fits my hand better with no backstrap installed.
While I find myself preferring the .40 for my home defense pistol, I like the 9 just fine, have for years.
But these threads make me think I should buy a conversion barrel, and sell the G17. Thanks for the deep dive on this subject.
 
police surplus ... Ended up getting a like new G22 gen4 ... preferring the .40 for my home defense pistol, I like the 9 just fine, have for years.

But these threads make me think I should buy a conversion barrel, and sell the G17. Thanks for the deep dive on this subject.
Congrats on the Gen4 Glock 22 and you are welcome for the "deep dive". :) Due to near carbide hardness Tennifer surface hardening treatment of barrel and slide, buying police trade-in/used Glocks is like buying a pistol that just got broken-in.👍 (I shot 120,000 rounds through my Gen2 G17 with negligible rifling wear to maintain accuracy and another match shooter bought it who continued shooting matches with some spring replacement ... They are tough!)

I went from Glock 17/19/26 to Glock 22/23/27 (Initially 9mm/45ACP to 40S&W to meet both USPSA major/minor power factors with a single caliber to simplify reloading process and lower cost with flexibility of 155/165/180 gr bullet weights) but found myself appreciating the benefit of 40-9mm conversion barrels using cheaper 9mm for practice and competing with 40S&W. And POI deviation between 9mm and 40S&W was less than an inch at typical match stage distances. (BTW FWIW, G19/23 barrels will fit in G26/27)

For defensive application, cheaper 9mm range practice with quick and easy swap back to 40S&W with barrel swap even before leaving the range.

And now I use Advantage Arms 22LR slide kit for Glock 22 for even cheaper shooting drills, especially fast point shooting drills that use up a lot of rounds. For closer sighted/unsighted point shooting, POI deviation is negligible:
 
I bought the Bear Creek Arsenal 9mm conversion barrel.
The biggest difference in the .40 slide is the width of the top barrel lug and case head slot.
Using the original extractor and .40 mags, the 9mm BCA barrel is half again more accurate than the original Glock barrel. Purchase price was $48.00! It’s also 100% reliable with the .40 recoil spring.

But, I made the “mistake” of buying a .40 BCA “drop in barrel.
It was a whopping “$43.00” plus shipping. It’s twice as accurate as the Glock barrel, shooting 2”groups at 25yds with my cast bullets! I’ve not since replaced it with either of the other two barrels.
It’s a no-name, only stamped .40S&W unit.
I’ve got lots of other 9’s, but it’s the only.40. Likely to stay that way!
 
I bought the Bear Creek Arsenal 9mm conversion barrel.
The biggest difference in the .40 slide is the width of the top barrel lug and case head slot.
Using the original extractor and .40 mags, the 9mm BCA barrel is half again more accurate than the original Glock barrel. Purchase price was $48.00! It’s also 100% reliable with the .40 recoil spring.

But, I made the “mistake” of buying a .40 BCA “drop in barrel.
It was a whopping “$43.00” plus shipping. It’s twice as accurate as the Glock barrel, shooting 2”groups at 25yds with my cast bullets! I’ve not since replaced it with either of the other two barrels.
It’s a no-name, only stamped .40S&W unit.
I’ve got lots of other 9’s, but it’s the only.40. Likely to stay that way!
Haven’t seen that barrel (BCA) that cheap yet, but I’m keeping my eyes peeled so when it goes on sale or price reduced that low I will snag it.
 
Haven’t seen that barrel (BCA) that cheap yet, but I’m keeping my eyes peeled so when it goes on sale or price reduced that low I will snag it.
I have 2 BCA 40-9mm conversion barrels for Glock 22 (I usually buy spare of many gun related things).

PM me and I will "Pay It Forward" one of the barrels. (It's almost your birthday or something, right?) ;)
 
AFAIK, those were the “blow them out the door” close-out prices. Got them about 3 years ago. I haven’t seen any listed since.
I would have liked to have a .357Sig also…
 
Extractors are pretty easy to swap in and out, but the ejector is frame mounted and a PITA. I've kept everything stock, but I should get the 9mm extractor as getting the case out of the chamber is the first step in the process. Shooting 9 in a .40 with stock ejector just means weak ejection, but I've never had a failure due to it and I presume as the recoil spring weakens that ejection will improve some.
 
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