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Thread: PMAG 20s not extremely reliable?

  1. #11
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    Since I'm in CA I'm running 3 with ranger plates that have the 10 round limiter. 2 run great and one will about 20% of the time lock the bolt back. The others will lock the bolt back every time.

  2. #12
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    Interesting.

    I know when I was firing my first 500 rounds out of my assembly, I did have 2 FTFeeds, same mag. Might have been one of the 20s (at the time I had 4 30s and 4 20s). I have not shot them since.

    I will have to put them to task. Right now they are dedicated to my MK262 ammo, which I have yet to shoot.
    Sticks

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  3. #13
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    I would like to see the high speed video. Would it be possible to post them?
    Certified Glock Armorer

  4. #14
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    I only use one 20 round PMAG and never have a problem with it feeding while shooting but now that this was brought up, I do remember that sometimes when I charge the weapon to begin shooting it does not feed the first round. Never gave it a second thought that it was the mag, always thought maybe I or my kids were maybe riding the charging handle forward.

    Will have to keep an eye on it. I really like the 20 rounders and might have to pick up some aluminum ones to try out.

  5. #15
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    Quote Originally Posted by 5pins View Post
    I would like to see the high speed video. Would it be possible to post them?
    I'd like to, but can't. Aside from it not being my video, it was over an hour to transfer the raw data to an avi, so we just used it, got the data we needed and reset. It's pretty high end equipment and that seems to make everything a pain in the ass.

    That said, there isn't much to see, gas streams out the carrier holes, it starts to roll back, goes full back, the rounds are sitting there in the mag, the bolt rolls forward, completely skips the top round on the mag, goes home. It's very hard to see, but it LOOKS like the follower is stuck tilted backwards slightly, the camera wasn't set up to see the mag exactly just the bolt, so who knows what was actually happening.

    I will say, we had zero of this issue with 5 rounds loaded in the surefire 60. I'll be testing again in a month or two. I plan to test my new 20, an A5, maybe a PSA WAR receiver, and some other stuff.

  6. #16
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    Shame about the footage, but this is not the first time I've seen folks complain about the 20-round PMAGs here. Maybe it needs a new generation/model with an updated spring or something.
    With the new 30-round model coming out, any word on an updated 20-rounder?

  7. #17
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    I honestly kinda doubt it. There are several features of brand-new PMAG 20s that appear on Gen I 30s, which leads me to believe that their first iteration is sufficient for enough end-users to not justify re-engineering.
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  8. #18
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    Just incase anyone was curious.... Fom the same day when the mags worked or we user usgi or a surefire 60

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  9. #19
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    Thanks, good to know!

  10. #20
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    My 20 round Pmags have been flawless for the 2 years I've had them.

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