swapping barrels in a glock


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tonytuna
April 14, 2012, 03:17 PM
I'm going to purchse another firearm within the next month or two.
It will be a glock, either the 23 or 27 not sure yet.
I was told I could swap the barrels with a .9mm and .357sig.
Is it true?
If so, what do I need to do for the swap?

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ku4hx
April 14, 2012, 03:32 PM
Get a conversion barrel; a 40 to 9 often just written as "40-9" ... mine's Lone Wolf brand. It worked so well in my G27 I bought a G26 and sold the barrel for 75% of what I had in it. Other than the barrel, the gun was pure G27; you do need to use G26 magazines. The 40-9 barrel was flawless through about 300 rounds and very accurate. 40-9 conversion barrels are available in G23 stock length. Maybe even extended; haven't look in a while.

I also have a LW 357 Sig conversion barrel that's stock length in my G23. It works in my G27 as a somewhat extended barrel. Other than the cartridge markings, 40 Cal and the 357 Sig magazines are identical. For this conversion, you don't need 357 Sig magazines, just use the 40 Cals.

ljnowell
April 14, 2012, 03:37 PM
A 40 cal Glock can shoot both 9mm and 357 sig with a simple barrel change(stock barels from glock would work for357). 9mm mags should be used with 9mm but the 40 mags will work with 357 sig.

1KPerDay
April 14, 2012, 07:10 PM
.40 glocks can swap to .357 with just a barrel swap (glock for glock, for example).

to shoot 9mm in a .40 glock you need a conversion barrel.

swinokur
April 15, 2012, 09:01 AM
10mm Glocks can shoot 40, 357 Sig, or 9 x 25 Dillon with the appropriate conversion barrel.

KKM and Storm Lake and LW make good quality barrels. LW are a bit cheaper. I actually am using KKM barrels in my G29SF and G20SF because they offer better chamber support than stock Glock barrels for hotter ammo.

bds
April 15, 2012, 09:25 AM
I use 40-9 Lone Wolf conversion barrels in my Gen3 G22/G27. While G22 requires G17 mags to feed 9mm rounds reliably, G27 mags feed 9mm without issues for me.

The Lone Haranguer
April 15, 2012, 02:34 PM
You can swap .40 and .357 SIG barrels, but to change from a .40 to a 9mm requires an aftermarket conversion barrel as well as 9mm magazines.

tonytuna
April 16, 2012, 09:13 PM
Thanks for the info. What mags would fit?
G23?
G27?
I really like the gen 4 g23. So that's what I should end up buying

1KPerDay
April 16, 2012, 09:58 PM
mags of the same caliber of same capacity AND LARGER will fit.

In other words, the G23 takes 13 round G23 mags AND 15 round G22 mags.

G27 takes 9-10 round G27 mags AND 13 round G23 mags AND 15 round G22 mags. The larger mags will stick out of the gripframe obviously. But several people make spacers that attach to the mags if you like.

Some find that .40/.357 mags will work with 9mm (using a conversion barrel). Some find they need to buy the appropriate 9mm magazines.

Some find that they need .357 specific followers, some find the .40 followers work fine for both .40 and .357.

Robbins290
April 17, 2012, 07:04 PM
Speaking of swappig barrel. Will a 21 barrel go in a 30sf?

abq87120
April 17, 2012, 11:28 PM
I have the LWD 40-9 and 357 Sig barrels for my G23. The 357 Sig and 40 mag followers are slightly different. GT posters claim there is no functional difference when shooting. My 40-9 required a 124g bullet when my gun was new. It now has a case plus through it and it shoots Federal (wimpy) and WWB 115g bullets reliably. The 357 Sigs are a blast to shoot. Expensive too. I ended up getting a reloading rig, lol.

DO NOT CARRY anything but a stock barrel. Some people even carry the ammo issued to the local cops. If you are involved in an SD situation, you will be painted as a blood thirsty killer in the civil suit that follows. The alternative barrels will certainly not help your lawyer's presentation.

1KPerDay
April 17, 2012, 11:55 PM
Speaking of swappig barrel. Will a 21 barrel go in a 30sf?
No.

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