[unclefo1123]

Hi Everyone;

Unclefo1123 here....

i am a 1st time owner of a Glock (or any handgun for that matter)...

My son bought the same exact model etc as mine about a year ago. He also purchased a 9mm Lone Wolf for it so he can afford $$ to shoot it when he wanted to (so did i just very recenty), the .40 ammo we bought is for home defense mainly.

Anyhoo... he told me i needed to buy a 9mm magazine for it, but when i went to the gun store where i bought the gun, the salesman seemed a little confused about that idea. he said he was pretty sure the original .40 magazine would work with the 9mm ammo... so he took some 9mm ammo and put it in the .40 mag, and it appeared to fit... but my son seems to think that i still need to buy a separate magazine.

i went online and one guy said it would fit, but that the 9mm ejects differently and will hit me in the head / face.

if anyone can help me, i'd really appreciate it. i don't want to spend more money on a magazine if i don't have to.

thank you

 

[Tactworld45]

Although I have never tried it, I would suspect you would have some feed issues with the .40 magazines. I would gt some 9mm magazines if you plan on shooting them much.

 

[cohland]

....when i went to the gun store where i bought the gun, the salesman seemed a little confused about that idea. he said he was pretty sure the original .40 magazine would work with the 9mm ammo... so he took some 9mm ammo and put it in the .40 mag, and it appeared to fit... but my son seems to think that i still need to buy a separate magazine.....i went online and one guy said it would fit, but that the 9mm ejects differently and will hit me in the head / face...

You should buy a 9mm magazine at the very minimum.

I tried to fit some 9mm ammo into a .40 magazine, and while it does fit, the top round sits quite high in the magazine, because the .40 magazine measures .372" across (the steel liner), while the 9mm measures .335" across. With the 9mm rounds sitting that high, I think there might be a little more drag on the sides of the .40 magazine with 9mm ammo, and I would bet on some feeding problems.

I have not been able to test this, but I might just do it if I can get to the range this week. I also tried some 9mm snap caps in the .40 magazine, and they are so loose and slippery that they won't stay in place.

Beyond the matter of the magazine, in order to do a .40/9mm barrel swap, you ought to get a 9mm trigger mechanism housing as well if you want the pistol to function correctly. The new type of ejector (marked 30274) for the 9mm Glocks only came about after several months of complaints about "random" ejection problems, which you are likely to see without the new ejector (which comes mounted in a trigger mechanism housing).

A barrel swap is not just a barrel swap, you need to think of the barrel as part of a system: barrel, magazine, recoil spring assembly (if it's a Gen4), possibly extractor, and trigger mechanism housing. Swapping only a few of the parts will probably not result in a reliable pistol. It might work, but it probably won't work well.

Although they do look like just about everything is interchangeable, Glock pistols are designed as systems, and a system only works properly with the right parts.

Chris

 

[unclefo1123]

You should buy a 9mm magazine at the very minimum.

I tried to fit some 9mm ammo into a .40 magazine, and while it does fit, the top round sits quite high in the magazine, because the .40 magazine measures .372" across (the steel liner), while the 9mm measures .335" across. With the 9mm rounds sitting that high, I think there might be a little more drag on the sides of the .40 magazine with 9mm ammo, and I would bet on some feeding problems.

I have not been able to test this, but I might just do it if I can get to the range this week. I also tried some 9mm snap caps in the .40 magazine, and they are so loose and slippery that they won't stay in place.

Beyond the matter of the magazine, in order to do a .40/9mm barrel swap, you ought to get a 9mm trigger mechanism housing as well if you want the pistol to function correctly. The new type of ejector (marked 30274) for the 9mm Glocks only came about after several months of complaints about "random" ejection problems, which you are likely to see without the new ejector (which comes mounted in a trigger mechanism housing).

A barrel swap is not just a barrel swap, you need to think of the barrel as part of a system: barrel, magazine, recoil spring assembly (if it's a Gen4), possibly extractor, and trigger mechanism housing. Swapping only a few of the parts will probably not result in a reliable pistol. It might work, but it probably won't work well.

Although they do look like just about everything is interchangeable, Glock pistols are designed as systems, and a system only works properly with the right parts.

Chris

Thanks guys, really appreciate the info, now the hard task of actually finding one. lol
unclefo1123

 

[haysmclean]

Hi Unclefo1123,
I have a 23 and have a setup for shooting 9mm. I got the Lone Wolf conversion barrel, too, and a few 9mm mags (just the typical mags that fit Glock 19). I order most things from Brownells, but you can get them from any number of mail order places. I was having some feed issues/ejection issues, so just went ahead and used spare parts (and ordered parts) to make a separate trigger bar with 9mm ejector, a 9mm extractor, and an extractor depressor with the 9mm spring loaded bearing. So, if I want to shoot 9mm, I just switch all of these things and it seems to work pretty well.

If it will shoot with the 40 mag loaded with 9mm, you know .. go for it ... (for pinging, not for anything else). I just think it could cause some feed issues and the mags are not expensive.

 

[MikeT57]

Yeah use the 9mm mags with that conversion barrel. I had feed Probs when using the. 40 original mags that came with my 23.

 

[1prdunson]

Hi Everyone;

Unclefo1123 here....

i am a 1st time owner of a Glock (or any handgun for that matter)...

My son bought the same exact model etc as mine about a year ago. He also purchased a 9mm Lone Wolf for it so he can afford $$ to shoot it when he wanted to (so did i just very recenty), the .40 ammo we bought is for home defense mainly.

Anyhoo... he told me i needed to buy a 9mm magazine for it, but when i went to the gun store where i bought the gun, the salesman seemed a little confused about that idea. he said he was pretty sure the original .40 magazine would work with the 9mm ammo... so he took some 9mm ammo and put it in the .40 mag, and it appeared to fit... but my son seems to think that i still need to buy a separate magazine.

i went online and one guy said it would fit, but that the 9mm ejects differently and will hit me in the head / face.

if anyone can help me, i'd really appreciate it. i don't want to spend more money on a magazine if i don't have to.

thank you

On YouTube watch Mr guns n gear video on converting a glock 23 gen 3 to shoot 9mm 100 % reliable with a great ejection pattern, one of the best conversion video I've ever seen.

 

[1prdunson]

On YouTube watch Mr guns n gear video on converting a glock 23 gen 3 to shoot 9mm 100 % reliable with a great ejection pattern, one of the best conversion video I've ever seen.

I have seen several videos with 9 in .40 mags ran really good. But for me I'm gonna run 9mm mag along with the9mm parts ...ejector , extracor spring loaded bearing , 9mm is black ...40 is white on the spring loaded bearing.