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Thread: LMT or ARMS BUIS

  1. #1
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    LMT or ARMS BUIS

    Which BUIS is better for long term usage? Its actually going to be my Main Iron Sight for a while until I decide if I want optics. Any suggestions for the newbie would be appreciated

  2. #2
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    For irons only, I would get the LMT. If going with an Aimpoint down the road, still get the LMT, use a Larue mount so the irons are in the lower third window of the Aimpoint. The LMT is more robust in my opinion. If you plan to go with a scope, don't waste money on the LMT since it would have to be replaced. I would look at other sight options if you are going with a scope, such as the Troy.

    Fixed sight wise, take a look at the Larue back up. It's simple, light weight and less chance of anyone monkeying with the knobs.

    Mark
    GET IN YOUR BUBBLE!

  3. #3
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    considering a LMT myself. their iron sight looks rather tall. would it be an issue with say a Trijicon Reflex sight in front of it?

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    I'm interested in this also. Should I get a EOTech riser from LaRue for my EOTech?

  5. #5
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    Quote Originally Posted by 33shooter View Post
    I'm interested in this also. Should I get a EOTech riser from LaRue for my EOTech?
    Without a riser of some sort, the central dot of the reticle will line up directly with the sights, meaning that it will sit atop the front sight post and in the center of the rear aperture.

    With a riser, like the LaRue mount, the iron sights will be positioned in the lower 1/3 of the EOTech's "window" and the reticle will float above them. The two sighting systems will function independently.

    Either way works, and it's really a matter of personal preference. With a fixed rear like the LMT, I prefer the lower 1/3 cowitness provided by the LaRue mount as the sight picture is less cluttered.

    And a pic...



    Derek
    An evil soul wields an evil sword.

  6. #6
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    I have the LMT BUIS and the ARMS 40L. For me the LMT is on my ' basic irons only' M4gery, and the 40L I use on my middy with an EOTech or low powered variable scope depending on what I'm doing. Both will get the job done by themselves but with optics there may be some problems depending on which route you take.

    I agree with mark5pt56 in that LMT would be my preference stand alone or with an Aimpoint with lower third co-witness. With an EOTech and no riser it gets in the way of the buttons if mounted close (unless you get the newer models with the buttons on the side) so I use the ARMS. The LMT won't work with a scope (well I guess it could with a really long eye relief scope and a monolithic upper, but why?) so I would get a low profile flip sight (Troy,MI,ARMS,etc.) if taking that road. It all depends on what you want to do with it and those plans may change so you may end up getting a few different ones until you find the right combination for you. You can always sell the ones that don't work for not to much of a loss. Or the cheaper way is to go to the range and see if anyone has set-ups similar to what you are looking at and ask to try them out. Most will oblige.

    mat10x- It does look kind of tall but I think that is just because it is bigger than most BUIS's. It really isn't much taller than any other rear sight (when in the upright position) just more bulky I guess. With a Reflex I believe it would be an absolute co-witness so the sight picture would be a little busy for me personally.

    With the EOTech and low powered magnified optics I have really come to prefer both front and rear flip-up BUIS's. The front sight post isn't too distracting but the sight picture is very nice without it.

  7. #7
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    1st choice for fixed LaRue BUIS
    2nd choice: LMT

    Only Choice(IMHO) for flip up: TROY

    ARMS- Is Shit, and I say that as an owner, and a person who gets issued an ARMS #40.

    The only thing ARMS does right, apparently, is marketing.
    Praise be to the LORD my Rock, who trains my hands for war, my fingers for battle. Psalm 144:1

    Owner of MI-TAC, LLC .

    @MichiganTactical

  8. #8
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    Quote Originally Posted by 45r View Post
    Which BUIS is better for long term usage? Its actually going to be my Main Iron Sight for a while until I decide if I want optics. Any suggestions for the newbie would be appreciated
    Well if we are going to compare ruggedness, I would actually say neither. The A2 style rear has a lot of moving parts that can break and or just fall out. We have also seen ARMS BUIS break. So for pure hard use, the LT BUIS for fixed and the TROY or KAC for flip up.


    C4

  9. #9
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    how are you guys liking your LMTs? considering one myself. any rust issues with the non parkerized front site? called LMT on that...they said "why would you bother parkerizing under the front site". to which i replied "rust" and "your competitors do". didn't get much of an answer.

  10. #10
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    Quote Originally Posted by C4IGrant View Post
    Well if we are going to compare ruggedness, I would actually say neither. The A2 style rear has a lot of moving parts that can break and or just fall out. We have also seen ARMS BUIS break. So for pure hard use, the LT BUIS for fixed and the TROY or KAC for flip up.


    C4
    I agree there are definitely better options out there. Had I known of the Larue BUIS when I was looking I would have gotten that instead of the LMT. Plus it is cheaper. But until my LMT fails me that is what will be on my rifle. I doubt it ever will but if/when, a Larue will reside atop my carbine in all its glory. Same with my shit ARMS 40L. I probably should have ponied up the extra dough for a Troy but until that breaks that is what I'll use. With as little as I actually use my BUIS (only to confirm that it is zeroed every now and then) I don't foresee it being replaced. At least it better not break. Damn it Grant now you've got me doubting the sight you sold me .

    You wouldn't happen to have any pics of the broken sights handy or can point me in the right direction? I'm definitely not doubting your statement that they break just the where, why, and how. I can definitely see how it could break in the deployed position from being dropped or something. I just haven't seen a broken sight pic compared to the many pics of their other broken products (mostly throw levers).

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