The ambi mag release on the G21SF is pretty awful...

This is a discussion on The ambi mag release on the G21SF is pretty awful... within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; At least mine is. With a full mag, it just about won't release from the right side and not easily from the left side. Often, ...

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Thread: The ambi mag release on the G21SF is pretty awful...

  1. #1
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    The ambi mag release on the G21SF is pretty awful...

    At least mine is. With a full mag, it just about won't release from the right side and not easily from the left side.

    Often, when I release a mag from right side, either full or empty, the mag release button sticks in the 'in' position and when I insert the next mag it doesn't catch.

    I read a post from an LEO that was having the very same problems I am, and he said that their PD's Glock armorer could not fix this problem. He's sending the gun to Glock in about two weeks.
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    man thats not good
    thats the first I've heard of that problem, hope they figure it out soon
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    Thanks for the info.

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    I remember when the Glocks first came out, they had similar problems. Thats when/why the changed the mag design. I wonder whats causing it again.
    "Just blame Sixto"

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    Quote Originally Posted by SIXTO View Post
    I remember when the Glocks first came out, they had similar problems. Thats when/why the changed the mag design. I wonder whats causing it again.
    Hmm, I don't remember that, oh well I'm old and I don't have to remember anything I don't want to.

    The mag and mag release mechanism is different for the ambi release models. The catch is similiar to an XD with the mag slot in the front center of the mag body rather than at the side as stock mags.

    I'd say part of the problem is that the mag catch lever has to rotate slightly to clear the mag slot, hence there would be an small arcing motion that would have to lift the mag slightly.

    I wonder if another contributing factor is the release mechanism required for the ambi release. I can see how it could not be as efficient as the standard release.

    It gets better - Glock claims they've never heard of this problem.
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    Quote Originally Posted by Tangle View Post
    The catch is similiar to an XD with the mag slot in the front center of the mag body rather than at the side as stock mags.



    don't say that around Sixto!

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    VIP Member Array matiki's Avatar
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    Does the mag release button need to rotate slightly as it's being depressed (like the XD) in order to work?
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    Quote Originally Posted by Tangle View Post
    It gets better - Glock claims they've never heard of this problem.
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    Quote Originally Posted by matiki View Post
    Does the mag release button need to rotate slightly as it's being depressed (like the XD) in order to work?
    Interesting thought, but no. I know what you mean, but the Glock release has a rectangular cross section and hence can't rotate.
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    Quote Originally Posted by 64zebra View Post



    don't say that around Sixto!

    Thats fine, he can. He also says it doenst work.
    "Just blame Sixto"

  12. #11
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    Quote Originally Posted by Tangle View Post
    Interesting thought, but no. I know what you mean, but the Glock release has a rectangular cross section and hence can't rotate.
    Next stupid question then - is it in upside down (could it be)? Is that possible?

    (the button)

    ETA:

    Nevermind. I found picks of the parts taken out of the gun at this thread where he was complaining about the same thing:

    http://www.glocktalk.com/forums/show...php?p=11657034

    IMO that design is just going to have to get broken in. Give it a work-out if it really bothers you.
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    Member Array Longbow's Avatar
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    I have a G21SF and the ambi mag release runs great!!
    I run this pistol stock in USPSA shoots and have never had a problem with
    mag retention or dropping free when doing fast mag changes.

    I have not heard of this problem before.

    I would work it back and forth and brake it in and then put a drop of lube
    down in there where the release goes back and forth, It is a super simple
    basic type of system.
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    The SF mags ARE different than the "regular" 21 mags because of this ambi mag. Maybe the problem. SF mags wont work in the old 21 but the old 21 mags will supposedly will work in the SF. Are you using old 21 mags??
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    Quote Originally Posted by jwhite75 View Post
    The SF mags ARE different than the "regular" 21 mags because of this ambi mag. Maybe the problem. SF mags wont work in the old 21 but the old 21 mags will supposedly will work in the SF. Are you using old 21 mags??
    That's true the ambi mags are different. The original 'recipe' have a notch in the front/side of the magazine which allows the mag release to simply slide out of the notch.

    The ambi mag release, has a lever that pivots on a horizontal pin so the catch lever can rotate in to a notch in the front of the mag. I believe what part of the problem is, that with the ambi mechanism, the lever has to rotate slightly to release the mag and since the tip of the mag lever moves in an arc, the mag has to be lifted slightly to let the lever clear. I think that, plus perhaps a less efficient mechanical design requires noticably more force to operate.

    The ambi mags also have the original notch in the side which explains why the ambi mags can be used with the orginal release. But the original mags don't have the front notch that the ambi release needs to catch the mag, which is why the original mags won't work in the SF.
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    I've learned that Glock has re-engineered and improved ambi mag release parts to help with the problem. One person I'm aware of already has them in his gun and his assessment is - it helps, but not perfect. I presume by perfect he means up to the original mag release performance.
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