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G21 sf

Discussion in 'General Glocking' started by ken grant, Oct 11, 2012.

  1. ken grant

    ken grant

    Apr 3, 2004
    middle ga.
    I have a G21 SF with the ambi mag release and standard Glock rail.

    Mine is almost like new and only has a few rds. through it.

    It has gave no problems but has not been shot very much.
    I understand Glock will replace it if I want them to.

    Would any of you suggest that I swap it for another or just keep it?
  2. F106 Fan

    F106 Fan

    Oct 19, 2011
    The ambidextrous magazine release was a bad design and caused many failures in the field. Glock isn't exchanging the guns out of the goodness of their reputed heart.

    When I bought my G21SF, I didn't know there was an issue. I was relieved to find out that mine didn't have the ambi mag release.

    I would work toward getting it replaced.

    Google around, it seems that Glock pays shipping both ways if you call them first.


  3. ken grant

    ken grant

    Apr 3, 2004
    middle ga.
    Don't need to worry about shipping as I only live about 45 min. from Glock.

    I was kinda thinking if all the Ambi owners traded theirs in for a replacement maybe in a few years mine might be a collecter item.
  4. diamondd2


    Apr 23, 2010

    Most likely it will. Especially the ambi-glock rail version, which is much more uncommon than the amb-1913 rail.
  5. gregw


    Sep 15, 2004
    I am in the same situation. I have a 21SF Ambi with Glock rail that has only about 100 rounds through it. I read somewhere that ejecting fully loaded mags can cause the mag release to fail. I did this about 50 times with a 13 round mag and another dozen or so times with a Korean 27 round mag and no failure. I think I will call Glock and see what they say. Also, my gun has factory night sights. Can I assume that a replacement would come with new night sights. That would be nice since this gun is almost 5 years old.
  6. Glock sent me a Gen 4 as replacement, and it did have factory night sights.

    I did not ask for this, but not complaining!

    Be very pleasant in your email/telephone conversation to Shaun Ford at Glock, never hurts to ask, either!

    My G21SF/1913 rail never had issues until recently, after many thousands of rounds. Magazine ejection was starting to get a bit problematic.
    Last edited: Oct 15, 2012
  7. irishbum


    Jun 8, 2005
    Kansas City,KS
    Does Gen 4 use different mags? Or can the older style mags work?

    I only ask cuz I also have a Gen3 ambi release w/Glock rail. I have thought about sending it in and have like 10 Glock 21 mags from the regular Gen3 I had but had to sell.

    I wonder if I asked for a Gen 3 if I can get a Gen 3?
  8. ken grant

    ken grant

    Apr 3, 2004
    middle ga.
    I understand that the old mags will fit the gen. 4 unless you move the mag release to the other side. With the release on the left side,all mags work
  9. Ranger45


    Jan 17, 2010
    North Carolina
    Older mags fit the Gen4 just fine.