2) Ejection Failures - Troubleshooting the Blowback 9mm AR

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  • Опубліковано 28 гру 2024

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  • @skeetmanshooter
    @skeetmanshooter 6 місяців тому +1

    Good stuff Doug. Very well thought out explanation. I respect the time and effort to gain the knowledge and then put it out there on video. You’re doing the PCC community a great service keep it up!

  • @cfh13
    @cfh13 5 місяців тому

    I replaced the original mag stop / ejector (aero precision style) in my Sharps Bros Jack AR9. The original held up to several range days but the replacement lasted 60 rounds before failing to feed issues began. I blue loctited it and properly installed it so nothing should be misaligned. It was my favorite and most accurate firearm until now.

  • @timwilliam8045
    @timwilliam8045 2 місяці тому

    Had ejection issues half the time on a new FMP-9 lower. Filed off a little metal on bottom of ejector behind the setscrew hole at slight angle and more on the rear of the ejector. It would not pivot up without removing metal off the rear. After a few filings and fit checks, the ejector face was just about perfect looking in the bolt channel. About 25 rounds the next day with no problems. Thumbs up!👍

    • @Blowback9
      @Blowback9  Місяць тому

      Great to hear, thanks!

  •  6 місяців тому

    Hey Doug great explanation on the ejector adjustments. I agree this alignment is a major issue on ejection problems. Thank you for posting this.

  • @danielmutchler2268
    @danielmutchler2268 6 місяців тому

    Thank you for explaining this issue. I have been fighting this problem with my colt style inserts.

  • @baxrok2.
    @baxrok2. 3 місяці тому

    My Extar EP9 is having ejection issues. My ejector is neither high nor tight! It's pinned so always aligned one way. I can heat and bend to get tight, but high is another thing. I've got my work cut out for me on this one. Thanks!

  • @FreedomCJ7
    @FreedomCJ7 6 місяців тому

    Again thank you Doug! I look forward to your next video and really appreciate the details on the EPC info.
    A special request, possibly a video on build mistakes, tools to hold the receivers for torque specs, things to pay close attention to, etc. Im just about ready to start torqing things in place and finding information on what works best to hold things in my vise is seemingly minimal as far as what actually works without issues.

    • @Blowback9
      @Blowback9  6 місяців тому

      I will see what I can do.

  • @billdischer3032
    @billdischer3032 6 місяців тому

    Hey Doug . Off subject but I love your gentle recoil system . I couldn’t get a Wilson flat wire because they’ve been out of stock. I do have a flat wire though.This setup is absolutely awesome. Thank you for your research and putting your knowledge out here for the 2A community.

    • @dave_bob
      @dave_bob 6 місяців тому

      Wilson changed their flat wire spring and it no longer fits over the Kynshot RB5015HD or others of that diameter. Blowback9 no longer recommends that spring.

  •  6 місяців тому

    Hey Doug can you add some demonstration on how to heat up and adjust the extractor also grinding down the Aero ejector to fit. Thanks

  • @dave_bob
    @dave_bob 6 місяців тому

    Doug, Joe Bob outfitters has an ejector they use on their 9mm Spartan lower that looks very much like the Aero ejector without the hole in it. Don't know if they will fit but maybe worth a try.

    • @Blowback9
      @Blowback9  6 місяців тому +2

      I just got mine in the mail today and will include it in my Aero lower video!

    • @4244john
      @4244john 6 місяців тому

      It does fit! It’s the exact same ejector minus the hole. Only difference I noticed was that the ejector face, where it makes contact with the casing, has more surface area/material than the Aero precision ejector. It doesn’t affect function and I noticed the mag sits a lot more flush when inserted.

    • @Blowback9
      @Blowback9  6 місяців тому

      @@4244john Excellent! I'll give it a try soon.

    • @4244john
      @4244john 6 місяців тому

      @@Blowback9update. I was able to adjust the new ejector and took it out to the range today. I ran over 400 rounds with absolutely no malfunction! Thank you for such a detailed guide.

    • @Blowback9
      @Blowback9  6 місяців тому

      @@4244john Nice!

  • @matthewdeancole
    @matthewdeancole 3 місяці тому

    The FX-9 ejector is on the bolt.

    • @Blowback9
      @Blowback9  3 місяці тому

      Good info, thanks! IIRC, the FX-9 isn't really a 9mm AR. Different receiver, bolt, and barrel specs that aren't compatible with other 9mm AR's.

  • @Timpala44
    @Timpala44 6 місяців тому

    Are there any 9mm PCC's that come with good ejectors straight out of the box?

    • @Blowback9
      @Blowback9  6 місяців тому +1

      Most should work "well enough". They come from the manufacturers at a height that should work with most bolts/uppers OK, but isn't optimal. Unless the upper/bolt/lower are all tested, aligned, and sold together they can't be fine tuned at the factory. I don't know anyone doing this.

  • @timlyon2924
    @timlyon2924 6 місяців тому

    If you file some material off the aero precision ejector and it doesn't allow it to pivot up enough what other options do you have to get it to come up more?

    • @Blowback9
      @Blowback9  6 місяців тому

      Possibly using the Joe Bob Spartan ejector in place of the Aero. I just got one in today and need to try it out.

    • @timlyon2924
      @timlyon2924 6 місяців тому

      @@Blowback9 what about opening up the one hole allowing the ejector to come up some?

    • @dgillz4497
      @dgillz4497 6 місяців тому

      @@timlyon2924will most likely cause the ejector to wiggle while in use. Joe bob ejector is like 13$ you can align that one the way you need and either drill the correct placed hole or a couple of v grooves for the bolts to sit in the right spot.

    • @dgillz4497
      @dgillz4497 6 місяців тому

      @@timlyon2924if you have luck opening up the hole and the ejector staying still let us know!