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Strike Industries Extended Magazine Plate for Glock 17/Glock 22
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Most Helpful Positive Review G17/34 extension plate
Ive been using this as a spare mag in my every day carry gaining me the total round count of 40 rounds in my SideCar. And ive also been absuing it at the range for the past 2 months and have dilabritly been dropping it on the ground doing 1 reload 1, check and other reload drills and it hasnt gotten...
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Most Helpful Negative Review cant recommend for one reason
23 rounds in a magazine that's competition legal is a feat. The question is, whats the trade-off for the additional capacity? Spring strength. I run other extensions with eolf springs and +2 rounds, slide locks back on empty. This mag? Not so much.
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They stick and don’t feed

by Brandon A, Verified Owner from IN, United States Written on January 4, 2026
The orange piece that goes on top of the spring sticks on the small lip where the extension meets the bottom of the mag. 3 of the 4 I bought didn’t feed. I would return these in a heartbeat if they weren’t used.
Would recommend: No
Was it helpful to you? Yes | No

g22 gen 3 .40s&w mag extension.

by caveman, Verified Owner from KY, United States Written on November 1, 2025
Kind of easy to install. Only say kinda due to a spring being involved. Springs always make it difficult.
It advertises +5 in a 40cal I was able to do +4 probably after spring breaks in I’ll get the other 1. I dropped it a handful of times, racked through the magazine a few times, no range time with it but overall feels and looks good. Spring is good and strong like a regular Glock magazine. Happy with this product will update after range time.
Pros:
  • Quality
  • Fit
  • FUCNTION
  • purpose
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Hoped for Best - Got Disappointed

by fwwilsonii, Verified Owner from TX, United States Written on October 21, 2025
I felt this was a quality product and would serve the purpose well, but unfortunately I have been sadly disappointed. Two of the three springs, are catching somewhere inside magazine (I have inspected several times and cannot see the where) causing the ammunition to not cylce on cartridge discharge, leading to misfire, non-fire, or stove pipe condition.

I disassembled, cleaned, re-installed, and have continued to see same problem. Presently stopped using product due to safety concerns with weapon system functionality and reliability.
Would recommend: No
1 of 1 found the following review helpful.
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G17 extender

by Glock owner, Verified Owner from TX, United States Written on May 23, 2025
Fits like a glove! Turns your glock stock into a Gucci look!
Would recommend: Yes
0 of 1 found the following review helpful.
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set screw came out of the plastic after second use

by macdjam, Verified Owner from VA, United States Written on May 16, 2025
Love the look of this but at first I had issues with the spring getting stuck and not feeding and figured it was me installing it wrong but then the set screw fell out so I can’t really use it anymore.
Pros:
  • Looks great
Cons:
  • Broken
Would recommend: No
1 of 2 found the following review helpful.
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SO FAR SO GOOD

by EDDY, Verified Owner from TX, United States Written on May 15, 2025
Easy to put on mags. keep your follower it does not come with new one. DO NOT overtighten the screw, it will start backing the insert out. Put the retainer plate in, and snug that little screw down and stop! Bought 3 of these, got 23 rounds in 2 of them, only got 22 in another. Will probably be fine once springs broken in a bit. The last 2-3 are tough to get in.
Would recommend: Yes
1 of 1 found the following review helpful.
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Extended clip

by Jason Brinkley, Verified Owner from NC, United States Written on January 11, 2025
Works good. Decent price. I recommend it. Easy to install
Would recommend: Yes
1 of 2 found the following review helpful.
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polymer mag extension

by Chris, Verified Owner from CA, United States Written on January 5, 2025
I feel like it should be in the item title that these are polymer, I thought these were aluminum but that’s on me. These did install easily and cycled. They look good and I think they’ll be ok in the long run but just wish they were aluminum.
Pros:
  • cost
Cons:
  • Polymer
Would recommend: Yes
0 of 2 found the following review helpful.
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Easy to install

by Clarence Presley II, Verified Owner from MI, United States Written on December 29, 2024
These work great on my G17 gen 5. I haven’t had any feeding issues or jams. I like them so much I made a second purchase to equip all of my mags.
Would recommend: Yes
1 of 1 found the following review helpful.
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Magazine extension

by Clarence Presley II, Verified Owner from MI, United States Written on December 22, 2024
These magazine extensions were easy to install and looks great on my gun. Give the weapon a clean look.
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No
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