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  • Kriss G21 Super V Mag 30 Ext. Kit

Kriss G21 Super V Mag 30 Ext. Kit

SKU: 2190
KRISS Super V 30 kit quickly converts your Glock 21 magazine to hold 30-rounds. Easy to install, no tools required. Fits G21 and G21SF magazines.

Please note: 1st generation, non-full metal lined Glock 21 magazines (circa 1995 and older) will have occasional functional issues that can cause the follower/spring assembly to hang up as the magazine unloads. Best results will come from using the newer generation G21 magazines, with the full metal lining.

Available for shipment to all 50 states.

Order Online or Call Toll-Free: 1-800-601-8273
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Ratings & Reviews

6 reviews

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Kriss mag extension


Went together easy . if you can disassemble a factory mag then you can quickly assemble this. It runs flawless! 0 failures in the year an half ive had it. 27rds + 1 . a mag loader helps. It does get very tight after 20rds . lula mag loader makes this not an issue and is easy loading to max capacity. Insert with open slide when at max 27 rds cap.

Very easy to install very well made great product


Works well no malfunctions so far I put about 500 rounds through it using my Glock 30 and it works perfectly I will be ordering A couple more. Very easy to install all you need is a Glock 21 Mags( 13 rounders )
Great product

Awesome quality mag extension! Kriss G21 Super V Mag 30 Ext Kit


I recently purchased (2) of the Kriss G21 Super V 30 mag extensions for my Gen 3 Glock 21SF. They are high quality parts and were very easy to assemble. My factory Glock 13rd 45 cal mags slid easily into the Kriss extensions and locked into place after assembling the second extension piece. The are built rock solid and look great. Can’t wait to test them out. Highly recommended for your G21 or G21SF!

A must buy for your glock 21!

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Great product! Runs smooth with the oem glock magazine! Defiantly buying another one!

Looks great

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The was easy to assemble and it fits perfectly in my Poly80 .45...can't wait to use it...now to buy a couple more...

BadAzz Kit

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Love it!!!! Looks good in my Glock30!