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870 competition trap help

Discussion in 'Shooting Related Threads' started by Ernesto1, Apr 24, 2012.

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  1. Ernesto1

    Ernesto1 Member

    Oct 1, 2009
    Need some help. Does anyone know what size/# o-ring works as a replacement for the original gas seal o-ring on an 870 comp?

    I have tried #30 which is 7/8 X 3/4 X 1/16. This is very close but is a little too thick and tears a little bit when I insert the barrel fully into the receiver. I'm thinking I need a smaller diameter id as this may stretch the ring out and decrease it's thickness.

    Any help would be greatly appreciated.

  2. TAS669

    TAS669 TS Member

    Jul 31, 2009
    I have some factory o-rings for them at home. I no longer need them and will let you have them for what I have in them, which I don't think was much. Drop me an email and I will see what I paid for them and how many I still have.

  3. Danny870

    Danny870 Member

    Jan 29, 2011
    you can get them from midway USA
  4. ljuticsscentennialpro

    ljuticsscentennialpro Member

    Jan 29, 1998
    Darryl, I took my Comp O-ring to an O-ring shop and they told me it was the following size: 2-018(90). The ones they sold me worked fine. If you cannot find any, send me your address via Private Message on this website and I will mail you some for free. Bob
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