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Thread: Anyone Using An Omega Rail As A True Free Float?

  1. #1
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    Anyone Using An Omega Rail As A True Free Float?

    Yes, i know that technically the Omega rails are considered free float rails since they do not attach to the barrel but since the rail does not have its own proprietary barrel nut, i was wondering if anyone had any issues using rail mounted sights on their omega rails and subsequently zeroing their rifles.

    I recently purchased an upper that i am absolutely stoked about but i got to thinking that since there are technically four contact points on the rail that interface with the barrel if the set screws were not equally screwed into the rail your sight plane wouldnt be in line.

    This is a very preemptive topic since i havent had a chance to get out and shoot the rifle nor zero it (im going to try and do it tomorrow) so this is basically me just asking for experiences from other users.

    I really dig the profile of the omega rail plus the length that i picked up and im really hoping it will work as id like to get another upper in this configuration.

    Thanks for any feedback and info anyone can give me, it will be greatly appreciated!

    PS, im using a troy flip up/down rear and an LMT fixed front.

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    The set screws pull the rail forward until it is up against the Barrel nut, just torque them and the rail will be parralell to the barrel. I have a 9.0 omega on my 10.5 with a lmt front sight, I have been running his setup since Last July without any issues.

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    Here's mine...............


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    Just my opinion but...

    The DD Omega was designed for "drop in" installation in situations where the front sight base couldn't (as with a pinned muzzle device) or shouldn't (as with some issued guns) be removed to install a traditional FF rail.

    Personally, I would prefer to use a DD M4 or Lite rail if I did not have the above restriction, and doubly so if I was going to extend it past the gas block.

    However, I don't think that you'll have an issue mounting the front sight on an Omega rail.

  5. #5
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    I have 3 DD Omega rails on 3 uppers, and Rob has a zillion times more experience than me; but personally, I wouldn't mount a front sight (or optic) on a free float rail if you expected to do any semi-precision shooting.

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    I wouldn't be looking for precision shooting with irons either, but I don't know that it's not possible.

    Remember that they are called "back up" iron sights for a reason. I don't think anyone is trying to win Camp Perry with them.

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    I've been wondering if there's any downside to mounting an aimpoint (for example) in a standard mount out on the FF rail to position it much like you get with a cantilever style mount.

    I've heard people say it's not cool, but functionally I can't see an issue with it.
    Last edited by markm; 03-17-09 at 16:23.

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    Quote Originally Posted by markm View Post
    I've been wondering if there's any downside to mounting an aimpoint (for example) in a standard mount out on the FF rail to position it much like you get with a cantilever style mount.

    I've heard people say it's not cool, but functionally I can't see an issue with it.
    I don't see the issue myself and the flip side is that you have an enormous field of view with the RDS up there. Of course the balance will change too.
    "The peace we have within us is most often expressed in how we treat others"

  9. #9
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    Had no problems zeroing my red dot today naturally.

    I will say however that my red dot ended up NOWHERE near my irons so i cant wait to see how the irons zero when i get more than 10 minutes to actually shoot the build.

  10. #10
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    Quote Originally Posted by Magsz View Post
    Yes, i know that technically the Omega rails are considered free float rails since they do not attach to the barrel but since the rail does not have its own proprietary barrel nut, i was wondering if anyone had any issues using rail mounted sights on their omega rails and subsequently zeroing their rifles.

    I recently purchased an upper that i am absolutely stoked about but i got to thinking that since there are technically four contact points on the rail that interface with the barrel if the set screws were not equally screwed into the rail your sight plane wouldnt be in line.

    Let's think this through.

    Omega rail is tight with no wobble?

    If yes, then who cares if it is parallel to the barrel or anything else?

    Your sight plane is between the rear aperture and the front sight post and has nothing to do with what your front barrel or anything looks like.

    Your barrel could be in the shape of a big U with a weird modern art forearm and you could still get a perfectly usable "sight plane."

    The issue is whether or not the thing that the front sight is attached to is firmly attached to the rear of the gun. Not whether or not the rail is exactly parallel to the barrel. The FSB or gas block sight for that matter when used also need to be firm with no wobble or movement. It is not a rail issue.

    Obviously you want it more or less in the same line as the barrel points to avoid having to have massive amounts of windage adjustment in the back
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