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Thread: Extractor spring / insert / ring - what is the latest wisdom?

  1. #21
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    My PSA bolt came with an O-ring and a black insert(inside of spring, not sure what it's called). Running it in a PSA 14.7" middy and it has been flawless for right over 1200 rounds of mostly Tula steel cased ammo.

  2. #22
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    Quote Originally Posted by Todd.K View Post
    It's generally accepted that carbines need more extractor tension than the original M16, and it's also generally accepted that the o-ring and extra power extractor together are usaully too much.

    We use a rifle extractor and O-ring on our rifles. We believe the O-ring has a longer service life than an extractor spring alone, while giving the increased extractor tension needed.

    For a duty or defensive carbine it's also important to change the extractor spring based on a round count, not failure to extract.
    .....Thanks Todd, do you have a "recommended round count change" for the extractor spring/o-ring ??? thanks,Dan

  3. #23
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    Quote Originally Posted by TacMedic556 View Post
    For a while it generated very fine, micro brass flakes after pulling cases out with a vengeance. It seems to die down with time.
    My Stag Model 8 with no black o ring was leaving flakes behind? Why? Problem?

  4. #24
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    I've read the thread TWICE! I'm a bit confused. Some are saying no o-ring and others are saying use the o-ring. I'm running a M&P 15 OR, carbine length gas system and shoot mostly XM193 5.56 ammo. Soon after I got it, I put an H2 buffer and the Springco extractor upgrade kit. I did not have any problems with the AR before the install, I did it more so as a "just in case". I have had NO problems since the install and have about 1200 rounds thru it. Should I consider taking the o-ring out??

    In case anyone can "read" a case here are a few pics of some I shot the other weekend.







    Last edited by Kodiak; 05-28-12 at 16:18.
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  5. #25
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    I use an o-ring on anything with a CAR gas length system, and on midlength guns which are shot exclusively suppressed.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  6. #26
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    Quote Originally Posted by Kodiak View Post
    I've read the thread TWICE! I'm a bit confused. Some are saying no o-ring and others are saying use the o-ring. I'm running a M&P 15 OR, carbine length gas system and shoot mostly XM193 5.56 ammo. Soon after I got it, I put an H2 buffer and the Springco extractor upgrade kit. I did not have any problems with the AR before the install, I did it more so as a "just in case". I have had NO problems since the install and have about 1200 rounds thru it. Should I consider taking the o-ring out??

    In case anyone can "read" a case here are a few pics of some I shot the other weekend.







    You may want to explore a blue springco buffer spring as well. I use the springco extractor spring as well, but I run a mid length so I don't use an o-ring.

    I see a little bit of ejector smearing, but nothing horrible. The springco blue would help a little in delaying unlocking and slowing the unlocking cycle. But there is nothing horribly wrong going on that I can see.

    The main issue is your primer is not flattened, indicating that there are no serious over pressure issues and that your chamber is apparently properly sized (a good thing).



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    Last edited by BufordTJustice; 05-28-12 at 18:26.
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  7. #27
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    Quote Originally Posted by bluecanary View Post
    My Stag Model 8 with no black o ring was leaving flakes behind? Why? Problem?
    Don't worry about it. Some re-loaders complain about the strong extractors ruining the rim of their cases. I don't reload for my M4's so it doesn't bother me that the cases get tore out of the chamber with a vengeance.

  8. #28
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    We recommend 5k for a duty rifle.

    Quote Originally Posted by DWSX View Post
    .....Thanks Todd, do you have a "recommended round count change" for the extractor spring/o-ring ??? thanks,Dan

  9. #29
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    The Colts we got in work came with a gold colored extractor spring.

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