Line-O-Site: Clamp On Crosshair Front Sight

One of the unique items Keith had in his machine shop was this clamp on Line-O-Site. It is a very basic cross hair that bolts onto the barrel of a rifle. Have any of our readers used one of these before? It seems so simple but I am curious how effective it is to just standard iron sights. I also wonder what calibers this could be used on. I would probably only use it on rimfire rifle.

Nicholas C

Co-Founder of KRISSTALK forums, an owner’s support group and all things KRISS Vector related. Nick found his passion through competitive shooting while living in NY. He participates in USPSA and 3Gun. He loves all things that shoots and flashlights. Really really bright flashlights.

Any questions please email him at


  • Squirrel

    My immediate thought was for a shotgun. Its like an AA sight for duck hunting

  • Joby

    This reminds me of those KNS duplex front sights. They work nice as a front sight. This looks more like an assist to help new shootersget used to finding a proper sight picture, but it could work for that as well, provided you don’t bump it on anything.

  • Tinkerer

    Interesting, want to try it on a Nintendo Zapper.

  • noob

    Any plans for a rail base?

    • Christian Hedegaard-Schou

      Take a look at the wooden box and paperwork this thing came in. It’s clearly a historical piece and no longer made. Dockendorff is long out of business.

      • Nunya Bidniz

        Remarkably ahead of their time. If they’d had TFB back then, it probably would have been a raging success, and red dots would never have been invented! Only hangup w/ this that I can see is how do you zero?


    Lots of threaded 10/22’s without front sights these days. *cough* hint *cough*

  • Reminds me of something from Borderlands.

  • Johnsmyname

    I want to put one on the barrel shroud of my Browning 1919. I wonder if they have a large size?! 🙂

  • Trey

    If it was low cost… might be fun on a Sterling Sporter …

  • Andrey Martim

    Steampunk red dot sight xD

    Actually I don’t see much use for this…

  • Brett

    Looks like a better “reflex” sight for the pipe weapons of Fallout 4

  • Capn Jack

    A VC Anti-aircraft sight