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Old February 23, 2014, 12:45 PM   #1
Hammer1
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Increased capacity magazine for Glock 21 ?

.

Who makes an increased capacity magazine for the 45 ACP Glock Model 21 ?

Something in the 20+ round range.

Something usable in the various 45 ACP carbines that use Glock magazines.

.
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Old February 23, 2014, 01:20 PM   #2
9x19
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There were some coming out of S. Korea... not sure how well they work as I don't need them for my pistol.

Try searching for KCI Glock mags.
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Old February 23, 2014, 08:09 PM   #3
bledsoeG19
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Kriss vector makes them. They're supposed to be THE high cap mag setup for 21's. IIRC, you have to use a factory magazine and his kit to make one high cap magazine though.
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Old February 23, 2014, 08:32 PM   #4
David spargenator
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I've never heard of anyone who make a high cap mag for glock 45 calibers. But if glock made one, I'd have a 21 in my collection
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Old February 23, 2014, 08:34 PM   #5
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Yes, the Kriss Vector extensions are what you want. They're not cheap though when you figure in the price of the standard G21 mag plus the extension. They are reported to work very well though.
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Old February 23, 2014, 08:38 PM   #6
JohnKSa
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There are a number of sources out there for bumping the capacity of the Glock 21 mags. You can go with replacement floorplates and springs which increase the capacity by either 2 or 4 rounds.

As already mentioned, Kriss makes an extension for the Glock mags that increases capacity to 25 rounds. I assume you can buy just the extensions, and I see that at least one retailer is selling the extensions already assembled onto factory Glock mags.
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Old February 27, 2014, 11:11 AM   #7
focodude
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I use the Kriss vector mags in my g21. I've shot a lot with them and haven't seen any problems.
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