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Help Need to replace 870 firing pin !

Discussion in 'Shooting Related Threads' started by Model12, Dec 22, 2008.

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  1. Model12

    Model12 Member

    Joined:
    Jan 29, 1998
    Messages:
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    Need the pin(12 ga.) and instructions. Thanks, Bob G
     
  2. Easystreet

    Easystreet Well-Known Member

    Joined:
    Jan 29, 1998
    Messages:
    1,462
    Assuming that you have the bolt assembly out of the receiver, here is what you need to do.

    Observe that at the rear of the bolt assembly, there is a small pin. Punch this pin out from the small diameter end toward the big diameter end. This will allow the firing pin and the firing pin return spring to slide out the rear of the bolt assembly.

    Replace the broken firing pin with a new one. Put the spring around the new pin. Insert it back into the bolt assembly. Replace the pin which holds the firing pin and spring in place by inserting the small end of the pin into the big end of the opening and pushing it through.

    Then replace the bolt into the gun. You're done.

    Easystreet
     
  3. Tom Strunk

    Tom Strunk Well-Known Member

    Joined:
    Jan 29, 1998
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    1,309
    Location:
    Payson, Arizona
    I'd replace the firing pin spring at the same time. This is so easy even a cave man could do it !

    Tom Strunk
     
  4. hmb

    hmb Well-Known Member

    Joined:
    Jan 29, 1998
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    9,406
    www.e-gunparts.com has the firing pin $9.95 and spring $5.55. HMB
     
  5. Shooting Coach

    Shooting Coach Well-Known Member

    Joined:
    Sep 14, 2006
    Messages:
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    Location:
    Nashville Tn
    As a reminder, use a GOOD punch and a real hammer. Some of the firing pin retaining pins are in TIGHT. Set the bolt on a steady wood surface or block.

    Make SURE the retaining pin is slightly below flush when you re install it.
     
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