close

Privacy guaranteed - Your email is not shared with anyone.

Roll pin wear

Discussion in 'Black Rifle Forum' started by skt4271, Nov 9, 2011.

  1. skt4271

    skt4271

    Joined:
    Mar 13, 2011
    Messages:
    256
    Likes Received:
    0
    Wondering if these marks are normal wear marks, or is some thing off. The weapon functions fine, just dont want to have premature wear.

    [​IMG]
    [​IMG]
    [​IMG]
     
  2. faawrenchbndr

    faawrenchbndr DirtyThirty fan CLM

    Joined:
    Nov 24, 2005
    Messages:
    36,694
    Likes Received:
    887
    Location:
    Troy
    Normal,......I've always had a spare cam pin ot two in the range box.
    I've never seen one shear,........yet.
     
    Last edited: Nov 18, 2011

  3. skt4271

    skt4271

    Joined:
    Mar 13, 2011
    Messages:
    256
    Likes Received:
    0
    Should I lube it more?
     
  4. MStarmer

    MStarmer In Jail...

    Joined:
    Feb 26, 2000
    Messages:
    1,484
    Likes Received:
    6
    Location:
    Washington State, Pacific Northwest
    It's one of the main places to run "wet". Google some of the maint docs for AR-15's or look for the "keep it running" done by swat mag. I posted a link to it in another thread I think.

    found it;

    www.ar15.com/content/swat/keepitrunning.pdf
     
    Last edited: Nov 9, 2011
  5. JBaird22

    JBaird22

    Joined:
    Nov 18, 2005
    Messages:
    1,679
    Likes Received:
    0
    Location:
    Washington
    The correct nomenclature is "cam pin" and those marks are normal. Shoot enough and a line will form where the bolt pivots on the cam pin.
     
  6. skt4271

    skt4271

    Joined:
    Mar 13, 2011
    Messages:
    256
    Likes Received:
    0
    yeah i was wondering if i should worry about getting the BCG too wet. i was worried it would affect my firing pin.
     
  7. american lockpicker

    american lockpicker License to Il

    Joined:
    Aug 9, 2009
    Messages:
    8,219
    Likes Received:
    1
    Location:
    Wood County, West Virginia
    I run mine soaked and it functions fine. I clean it every 90 rounds or so.
     
  8. crazymoose

    crazymoose Nonentity

    Joined:
    Feb 9, 2005
    Messages:
    4,472
    Likes Received:
    82
    Assuming that's the POF roller cam pin, or something like it. The normal cam pins are wear items that should be replaced every few thousand rounds. Don't know what the lifespan is like for this type of pin, but it's a part that takes a lot of stress, so wear is to be expected. And yes, keep it lubed. It's one of the parts on the AR that needs lubing the most.
     
  9. faawrenchbndr

    faawrenchbndr DirtyThirty fan CLM

    Joined:
    Nov 24, 2005
    Messages:
    36,694
    Likes Received:
    887
    Location:
    Troy

    It can not be over lubed,.......the BCG will expell what it does not need.
     
  10. cciman

    cciman

    Joined:
    Jan 19, 2009
    Messages:
    3,733
    Likes Received:
    216
    Location:
    SW Ohio
    I'd wait to at least 97.

    No seriously, 497, maybe 897... Piston.

    Silicone grease works well too, does not dry, thin, or burn off.


     
  11. skt4271

    skt4271

    Joined:
    Mar 13, 2011
    Messages:
    256
    Likes Received:
    0
    yea, its a POF, i'm a recrea shooter so i only shoot every other saturday. hell even less now its cold. i guess i should have a couple spares.

    yea its a piston, i like that is easy to clean. mostly wipeable, but i clean clean it anyway.