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Old July 17, 2013, 05:53 PM   #1
Departed402
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40 cal Glock mags in a Glock chambered in .357 SIG

Pretty straight forward. Can .40 S&W magazines be used reliably in Glock handguns chambered for .357 SIG? The Glock factory 22 round 40 S&W mags is why I ask.
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Old July 17, 2013, 06:01 PM   #2
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Re: 40 cal Glock mags in a Glock chambered in .357 SIG

Last I checked yes, they are interchangeable. I know Glock in the past changed them to where they weren't the same, but I'm pretty sure that they are now compatible with either cartridge.
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Old July 17, 2013, 06:54 PM   #3
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My guns shot fine with them, I'm sure they'll sell you some if you ask for them. They'll sell you anything to make a buck but yes mine shot fine out of a Glock gen 4 model 23 with a conversion barrel ( a 357 sig ).
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Old July 17, 2013, 07:40 PM   #4
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Yes. With an exception gen3 mags in (some) gen4 guns.
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Old July 17, 2013, 07:52 PM   #5
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Re: 40 cal Glock mags in a Glock chambered in .357 SIG

Quote:
Originally Posted by vladan View Post
Yes. With an exception gen3 mags in (some) gen4 guns.
Explanation?
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Old July 18, 2013, 12:59 AM   #6
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Gen4 guns and magazines are ambidextrous so for gen4 gun that is set-up for left handed shooter the gen3 mags will not work. Nothing to do with the caliber swap the OP asked about.
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Old July 18, 2013, 01:13 AM   #7
allaroundhunter
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Re: 40 cal Glock mags in a Glock chambered in .357 SIG

Quote:
Originally Posted by vladan View Post
Gen4 guns and magazines are ambidextrous so for gen4 gun that is set-up for left handed shooter the gen3 mags will not work. Nothing to do with the caliber swap the OP asked about.
Okay I gotcha. Yes, if the OP has the gun set up for left handed use, then only Gen 4 mags are useable. But .40 cal magazines would still work without a problem.
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Old July 18, 2013, 02:20 AM   #8
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Sig has their mags stamped 40/357Sig on the side I can see Glock following them.
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Old July 18, 2013, 04:09 PM   #9
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I bought a half dozen Glock full sized .357 sig magazines a few yours back and use them my Glock 22 with out a problem. They are the exact same as the .40 magazines just stamped .357 sig on the back.
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Old July 18, 2013, 05:36 PM   #10
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The followers are different. But they've worked interchangeably for me.




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