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Front Sight Pins Won't Move

Discussion in 'Black Rifle Forum' started by n2wishn, Mar 2, 2010.

  1. n2wishn

    n2wishn Stamp Collector

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    I got a brand new Daniel Defense XV upper and I want to remove the Front Sight Post and gas tube so I can add the Daniel Defense Omega 12.0 FSP rail but the pins on the front sight won't budge. I have the Brownells Pin block and I tap the pins and all the punch does is slide right off. I'm starting to get frustrated I have never had this problem before. Any suggestions would be greatly appreciated.
     
  2. NeverMore1701

    NeverMore1701 Fear no Evil Platinum Member

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    Eesh, tell me about it. Have a 2 page thread of my own regarding that, but with a BCM upper. Broke 3 punches so far.
     

  3. mvician

    mvician Lifetime Member

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    Don't "tap" the pins.......HIT them.
     
  4. n2wishn

    n2wishn Stamp Collector

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    LOL! I hit them so hard I broke a punch and had to go buy another set. They just won't move! I'm no flake... those babies are in there. Almost like some one stuck a cold piece a metal in a heated piece of metal to make sure they didn't move. :shocked:
     
  5. faawrenchbndr

    faawrenchbndr DirtyThirty fan CLM

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    What direction are you trying to drive the taper pins?
     
  6. n2wishn

    n2wishn Stamp Collector

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    Using the Brownells Front Sight Block with the Pins Out position facing up, I would be pushing the pins from the left side of the rifle to the right. When putting them back in it would be the reverse. This is how I have always done it. Only on this upper they are not moving.
     
  7. faawrenchbndr

    faawrenchbndr DirtyThirty fan CLM

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    Bigger hammer. I use a 1.5 pound mini sledge. Are the pin ends peened now?
     
    Last edited: Mar 2, 2010
  8. furioso2112

    furioso2112

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    I was going to recommend Nevermore's thread in case he had figured something out, but he's already been here. Contact the manuf?
     
  9. n2wishn

    n2wishn Stamp Collector

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    No, the pins are not peened at all that is the wierd part. I'm flattening punches and breaking punches and the pins are not moving.
     
  10. NeverMore1701

    NeverMore1701 Fear no Evil Platinum Member

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    Exactly same here. I started out with a 20oz hammer, and then upgraded to a 3lb mini-sledge. Damn things Will.Not.Move. :faint:
     
  11. duncan

    duncan Millennium Member Lifetime Member

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    [​IMG]

    Spray PB Blaster on the FSB pins and wait 10 minutes.

    [​IMG]

    Use a finish nail set (middle) and put the hurt on those pins with the hammer of Thor. Wrap tip of nail set in electric tape/duct tape so it does not slip.

    Drive it home.

    Works every time.
     
  12. jdm0506

    jdm0506

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    What sort of punches you using? I can see bending the punches, but breaking? I used a tapered punch about the size of the taper pins. I'd initially tried with a punch from a friend's DPMS punch kit. I mangled that thing good. I ended up going to Sears and picking up a $2 off brand punch.

    You only really need the beefy punch to get the pins started out. The larger surface area of the larger punch reduces the amount of slippage. Plus, if it slips, it doesn't really matter if you ding the FSB. I dinged mine quite a bit around the pin holes, and when I installed my 12.0 FSP, you couldn't see it.
     
  13. faawrenchbndr

    faawrenchbndr DirtyThirty fan CLM

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    Those work for me also!.........:supergrin:
    My nail sets are nowhere near as fancy as yours though! :rofl:
     
    Last edited: Mar 5, 2010
  14. Spiffums

    Spiffums I.C.P.

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    Like a screen door in a hurricane.:rofl:
     
  15. faawrenchbndr

    faawrenchbndr DirtyThirty fan CLM

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    Like a Pimp smackin his Ho!
     
  16. n2wishn

    n2wishn Stamp Collector

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    The punch set I broke came from Northern Tool. I then ordered some from Brownells and I haven't broken those but I do plan on getting some PB Blaster and trying that method.
     
  17. n2wishn

    n2wishn Stamp Collector

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    Thanks for the info! I'm putting this plan into action.
     
  18. Unistat

    Unistat

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    Part of the reason the punch is sliding off could be that the punch tip is convex (or flat) and the pins are convex.

    After I snapped the shank on my punch, I took a Dremel and ground a concave dish in what was left of my punch. After that, one good whack knocked 'em loose.
     
  19. TimP

    TimP 1 Proud Infidel

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    um, forgive me if I am wrong, but.......

    Do you need to remove the FSB to install an omega rail?
     
  20. Ljunatic

    Ljunatic On The Fringe

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    Omega X rail FSP has a special steel barrel nut like the Lite rail, that must be installed first