Suppressors Hey Glock guys ?

[ROLEXrifleman]

Going from 40 to 9mm or vise versa.

i know it;s just a mag and barrel swap, but the question is, is the breech face the same? How do you get away with this?

 

[jasonk]

Re: Hey Glock guys ?

You can go from 40 to 9mm, not the other way. I've heard mixed review, but 90+% positive. I had a G35 that I'd run 9mm almost full time, it never stopped once.

Just drop in the 9mm barrel, use the 9mm mags and rock on.

 

[ROLEXrifleman]

Re: Hey Glock guys ?

is the breech face diffrent between the 2? It sounds like the .40 is obviously larger and wouldnt support the 9mm cartridge correctly

 

[SPDGG]

Re: Hey Glock guys ?

Conversion Barrel from 40S&W to 9mm: Lone Wolf, Storm Lake, KKM, etc.

IMHO: Swap out the 40S&W Glock extractor to a 9mm Glock Extractor as well. Easy/Quick Swap = Reliable Extraction with the conversion

 

[samuraiwarrior23]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SPDGG</div><div class="ubbcode-body">Conversion Barrel from 40S&W to 9mm: Lone Wolf, Storm Lake, KKM, etc.

IMHO: Swap out the 40S&W Glock extractor to a 9mm Glock Extractor as well. Easy/Quick Swap = Reliable Extraction with the conversion </div></div>
Yes this is the headache free way to do it less like to get any misfeeds.

 

[SuckitTrebek]

Re: Hey Glock guys ?

actually it is only recommended to go from .40 to .357sig.

NOT to 9mm at all.

There are no tolerance differences for .40 to .357sig. However even though the tolerance differences are small from .40 to 9mm it is not recommended.

 

[BOLTRIPPER]

Re: Hey Glock guys ?

the glock is a 22 with a storm lake 35 barrel threaded by my plumber....just drop'd in and runs like a sewing machine

 

[ROLEXrifleman]

Re: Hey Glock guys ?

OK, answered my own question. Forgot I had a 17L and a 24C.

Breech face on a 9mm slide is .390 while a .40S&W slide is .430 so teh diffrence is .040. Enough for me not to want to do a caliber conversion. While i understand that the diffrence isnt huge I don't like the idea of any slop there. Tolerances are tolerances. If someone pulled this on a custom rifle we'd all freak and say OH MY GOD .040 DIFFRENCE, SOMEONE NEEDS TO DIE.

Since a .357 sig is a necked down .40 there is no diffrence and a simple barrel swap is all that's needed. I take it there is a bit of slop in teh 20 and 21 conversions as well.

Bolt, wouldnt it have been cheaper just to getit threaded by Lone Wolf?

 

[Snakum]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: YourMotherTrebek</div><div class="ubbcode-body">actually it is only recommended to go from .40 to .357sig.

NOT to 9mm at all.

There are no tolerance differences for .40 to .357sig. However even though the tolerance differences are small from .40 to 9mm it is not recommended. </div></div>

Not recommended by whom?

When I did three-gun I must have seen ten or fifteen G22s running 9mm drop-in barrels, including at least two LEOs who had had attended the Glock Armoror's course, and who had only changed the extractor. Both recommended it it to me, and in all the time I saw them run I saw not a single hiccup.

 

[ROLEXrifleman]

Re: Hey Glock guys ?

I doubt anyone is claiming they wont function. But I can see Glock saying this is not a process recomended not only because of teh diffrences in teh slide but also see it as a modification that voids teh warrenty. Like shooting reloads. Everyone does it and the mfg's 9 at least 90%) claim to void warrenty.

I doubt, teh glock armores coarse would have said this was ok. So saying they atrtended the coarse and recomended it to you doent mean it's ok.

 

[samuraiwarrior23]

Re: Hey Glock guys ?

From my understanding on a G-22 Frame you could take a complete slide off a 17 and put it on a 22 the only reccomended change is the ejector and of course magazines.
I have a G20 and a G21c and I have KKM conversion barrels for them I can change them back and forth from 45apc to 10mm without any feed issues .If you get a conversion barrel there will be no play or slop in the breechface.
Oh and also dont covert Gen 1 & 2 G17s to 40 cal.(** ONLY 3 pin frames**) or you maybe missing some fingers down the road.

 

[SuckitTrebek]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Snakum</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: YourMotherTrebek</div><div class="ubbcode-body">actually it is only recommended to go from .40 to .357sig.

NOT to 9mm at all.

There are no tolerance differences for .40 to .357sig. However even though the tolerance differences are small from .40 to 9mm it is not recommended. </div></div>

Not recommended by whom?

When I did three-gun I must have seen ten or fifteen G22s running 9mm drop-in barrels, including at least two LEOs who had had attended the Glock Armoror's course, and who had only changed the extractor. Both recommended it it to me, and in all the time I saw them run I saw not a single hiccup. </div></div>

Whom is Glock.


Just because you can do it doesn't mean you should. This goes for more than a few things!

 

[300WSM]

Re: Hey Glock guys ?

9 conversion barrels made to work with the 40/357 ejector. However the extractor leaves little marks on 9 brass...if that is an issue for ya?

 

[Captain Moroni]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ROLEXrifleman</div><div class="ubbcode-body">is the breech face diffrent between the 2? It sounds like the .40 is obviously larger and wouldnt support the 9mm cartridge correctly </div></div>
Glock doesnt have a supported chamber anyway I wouldnt worry about it. Its one of the strength/weekness of the glock world

 

[Snakum]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Whom is Glock.</div></div>

Really? That's the first I've heard that. Seemed every bloke and his dog was running a 9mm barrel in their G22, and the Armorer guy only said to put in the 9 mil extractor if I was going to run it that way a lot. Hmmmm ....

What is it exactly that can go wrong, worst case, by running the aftermarket barrel? I assume Glock has a reason for warning against it. Anyone know if it's dangerous? I actually pulled up the BarSto website earlier this week and planned on ordering a 9mm for the run-and-gun season. What should I know before I do dat?

 

[737shark]

Re: Hey Glock guys ?

My g23 and g35 run just fine with 9mm threaded barrels

 

[DRAM40A1]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BOLTRIPPER</div><div class="ubbcode-body">the glock is a 22 with a storm lake 35 barrel threaded by my plumber....just drop'd in and runs like a sewing machine

</div></div>

I've never seen a G35 barrel chambered in 9MM......You sure it's not a G34?

 

[stmcelroy]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DRAM40A1</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BOLTRIPPER</div><div class="ubbcode-body">the glock is a 22 with a storm lake 35 barrel threaded by my plumber....just drop'd in and runs like a sewing machine

</div></div>

I've never seen a G35 barrel chambered in 9MM......You sure it's not a G34?</div></div>

It's a .40s&w Glock 22 with a .40s&w glock 35 barrel, no mention of 9mm in that post.

 

[Rob_0811]

Re: Hey Glock guys ?

I run a G32 with a threaded KKM 9mm conversion barrel and have had no problems at all. It runs like a raped ape.

 

[BOLTRIPPER]

Re: Hey Glock guys ?

35 barrel...my bad

the threaded lone wolf barrels suck,,,,tried 'em......they pattern not group.

 

[Snakum]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BOLTRIPPER</div><div class="ubbcode-body">35 barrel...my bad

the threaded lone wolf barrels suck,,,,tried 'em......they pattern not group.

</div></div>

What's the word on BarSto 9mm tubes? Are they considered more or less accurate than the Lone Wolf?

 

[samuraiwarrior23]

Re: Hey Glock guys ?

I think BarSto barrels require/recommended alittle more fitting than KKM but I hear they are very accurate.I have several KKMs in my Glocks and Im very happy with their performance and they reqiured little to no fitting.

 

[bglimpse]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ROLEXrifleman</div><div class="ubbcode-body">OK, answered my own question. Forgot I had a 17L and a 24C.

Breech face on a 9mm slide is .390 while a .40S&W slide is .430 so teh diffrence is .040. Enough for me not to want to do a caliber conversion. While i understand that the diffrence isnt huge I don't like the idea of any slop there. Tolerances are tolerances. If someone pulled this on a custom rifle we'd all freak and say OH MY GOD .040 DIFFRENCE, SOMEONE NEEDS TO DIE.

Since a .357 sig is a necked down .40 there is no diffrence and a simple barrel swap is all that's needed. I take it there is a bit of slop in teh 20 and 21 conversions as well.

Bolt, wouldnt it have been cheaper just to getit threaded by Lone Wolf? </div></div>

You will have NO issues running the 9mm in a 40S&W Glock.

 

[Downzero]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Captain Moroni</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ROLEXrifleman</div><div class="ubbcode-body">is the breech face diffrent between the 2? It sounds like the .40 is obviously larger and wouldnt support the 9mm cartridge correctly </div></div>
Glock doesnt have a supported chamber anyway I wouldnt worry about it. Its one of the strength/weekness of the glock world </div></div>

Stop believing the crap you read on the internet. The Glock chamber has no less support than comparable ramped barrels in other pistols.

 

[Snakum]

Re: Hey Glock guys ?

Thanks for the info on KKM. I've checked around a bit and they have a very good rep for reliability and accuracy. Might pick one up next week.

 

[USACS]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Snakum</div><div class="ubbcode-body">

What is it exactly that can go wrong, worst case, by running the aftermarket barrel? I assume Glock has a reason for warning against it. Anyone know if it's dangerous? I actually pulled up the BarSto website earlier this week and planned on ordering a 9mm for the run-and-gun season. What should I know before I do dat?</div></div>
Glock doesn't recommend aftermarket barrels because they're not as strong as Glock barrels, and they can't guarantee the reliability and safety of them. The tenifer process hardens the barrels and makes them significantly stronger than any non-treated stainless steel or other metal. Glock barrels are not labeled as "match grade", but they have match grade accuracy and produce match grade pressures with the polygonal rifling.

 

[bglimpse]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: USACS</div><div class="ubbcode-body">

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">

What is it exactly that can go wrong, worst case, by running the aftermarket barrel? I assume Glock has a reason for warning against it. Anyone know if it's dangerous? I actually pulled up the BarSto website earlier this week and planned on ordering a 9mm for the run-and-gun season. What should I know before I do dat?</div></div>
Glock doesn't recommend aftermarket barrels because they're not as strong as Glock barrels, and they can't guarantee the reliability and safety of them. The tenifer process hardens the barrels and makes them significantly stronger than any non-treated stainless steel or other metal. Glock barrels are not labeled as "match grade", but they have match grade accuracy and produce match grade pressures with the polygonal rifling. </div></div>

That is the Glock Lawyers talking, there is nothing wrong with a good aftermarket barrel.

 

[DRAM40A1]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: stmcelroy</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DRAM40A1</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BOLTRIPPER</div><div class="ubbcode-body">the glock is a 22 with a storm lake 35 barrel threaded by my plumber....just drop'd in and runs like a sewing machine

</div></div>

I've never seen a G35 barrel chambered in 9MM......You sure it's not a G34?</div></div>

It's a .40s&w Glock 22 with a .40s&w glock 35 barrel, no mention of 9mm in that post. </div></div>. LOL, it's a 9mm can and Ripper shoots 9mm ammo through it so it's not a G35 barrel! He's just getting confused in his old age.

 

[USACS]

Re: Hey Glock guys ?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bglimpse</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: USACS</div><div class="ubbcode-body">

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">

What is it exactly that can go wrong, worst case, by running the aftermarket barrel? I assume Glock has a reason for warning against it. Anyone know if it's dangerous? I actually pulled up the BarSto website earlier this week and planned on ordering a 9mm for the run-and-gun season. What should I know before I do dat?</div></div>
Glock doesn't recommend aftermarket barrels because they're not as strong as Glock barrels, and they can't guarantee the reliability and safety of them. The tenifer process hardens the barrels and makes them significantly stronger than any non-treated stainless steel or other metal. Glock barrels are not labeled as "match grade", but they have match grade accuracy and produce match grade pressures with the polygonal rifling. </div></div>

That is the Glock Lawyers talking, there is nothing wrong with a good aftermarket barrel. </div></div>
There's nothing wrong with GOOD aftermarket barrels. I have used a KKM 6" stainless match grade barrel on my G20C for deer hunting (MN state law used to require 6" barrel minimum) in the past, but it was no more accurate than the stock barrel. My groups at 25, 50 and 100yds were all pretty similar. There are some crap barrels though that are outside of spec or tolerance. Lone Wolf has had this problem, and I've heard of complaints of others. KKM is pretty good though.
I'm just pointing to the fact that if you do an unauthorized conversion or modification to a Glock, you can kiss your warranty goodbye. For some people, that's important. A barrel swap isn't a big deal, but when you start changing out other parts, you have the potential for problems. If you don't care about the warranty, then it's really a moot point and of no concern. I'm just making a point for the sake of the warranty.

I personally advocate that people just pony up and buy a separate pistol. There are enough factory reconditioned LE trade-in guns for sale, as well as tons of used ones out there that you can buy for very reasonable prices. And you don't have to worry about swapping out extractors and barrels and magazines.