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What is your favorite BUIS, and why?

Discussion in 'Rifle Country' started by Tim the student, Jan 2, 2012.

  1. Tim the student

    Tim the student Well-Known Member

    I plan on getting a set for an upcoming AR build (or building a lower and pinning an upper to it rather).

    I'm familiar with the Matech from my time in the Army, and they worked ok, but I was almost always was actually using optics with the BUIS down.

    I think I would prefer flip ups, but I'm not dead set on that. Later, I plan on adding optics to it.

  2. downingducksdowneast

    downingducksdowneast Active Member

    Troy industry sights are my favorite, but I have both matech and magpul BUIS in service. Like you said, they are backups so other than some use here and there to verify zero and keeping me from getting rusty they don't get used.
  3. Onmilo

    Onmilo Well-Known Member

    Daniel Defense A1 non folding and the Matech BUIS for folding because that is what I have on most of my rifles.
  4. StrutStopper

    StrutStopper Well-Known Member

    Troys are nice but I have a Magpul gen 2 on my AR. Rear only, I've got a fixed FSB.
  5. rbernie

    rbernie Well-Known Member

    I run the Mangonel rear sights on more ARs than any other BUIS - I prefer their simple design and large rear aperture.
  6. chad1043

    chad1043 Well-Known Member

    I also have the Magpul Gen 2. It was the only BUIS that fits under my scope.
  7. HKGuns

    HKGuns Well-Known Member

    YHM because they lock up and lock down and have a large and small aperture.
  8. madcratebuilder

    madcratebuilder Well-Known Member

    Matech (usgi) has a low profile and well fit most scoped guns. Troy makes a nice set. If I buy any more I want to try the LMT A2 set.
  9. Ragnar Danneskjold

    Ragnar Danneskjold Well-Known Member

    I prefer Magpul due to their low weight and ease of use. Yeah, I know the weight is negligible, but I put together a super light weight carbine and I think every saved oz. can make a difference.
  10. Tirod

    Tirod Well-Known Member

    Carry handle A4 cut down. One bolt clamp on, milspec, co witness, no fumbling to get them up or down. Most optics mount forward anyway.

    You can pickup one used under $40.
  11. Z-Michigan

    Z-Michigan Well-Known Member

    I'm quite happy with the MBUS. The Troy is a little nicer but not 2x nicer, and I prefer the spring loaded feature of the MBUS. I've also been happy with the Samson and MI for flips.

    For fixed rear I prefer the LMT. After that the DD and Troy fixed are both just fine, but the LMT gives you the elevation drum from an A2.
  12. buckhorn_cortez

    buckhorn_cortez Well-Known Member

    If you're going to put a scope or red dot sight on the rifle, then I'd look at Dueck Defense Rapid Transition Sights.

    No worries about being in the way of optical sights, no need to flip up and down to use. I have them on my AR 15 - they work just fine.
  13. Z-Michigan

    Z-Michigan Well-Known Member

    They look like great sights, but $238 is a lot to spend on BUIS.
  14. henschman

    henschman Well-Known Member

    For a flip-up rear sight, I like the KAC 2-600m model. It does everything the carry handle sight does, but in a much smaller and fold-able package. It is one of the only flip-ups that is adjustable for elevation at the rear sight. The Matech does this too, but it doesn't have consistently-incremented clicks like the KAC does, and I've heard some negative things about the durability of the Matech. The KAC looks pretty hard to break. We'll see... I loaned mine to my friend who is in Afghanistan and has been seeing plenty of combat, so I imagine it will be pretty well "torture tested" when it gets back. He likes it a lot better than the issued Matech.
  15. sgtstryker

    sgtstryker Well-Known Member

    I'm using theMagpul Gen 2 also, on two flattops. They work well, are durable enough for long range time. Won't break the bank, either..It's a personal choice.
  16. kfgk14

    kfgk14 Well-Known Member

    Assuming emphasis on the BU in BUIS, Magpul MBUS's. I trust the optics I run implicitly, I don't worry about them at all. If iron's are all I get, I want the DD A1.5 rear sight and an F-marked front sight post.
  17. jmorris

    jmorris Well-Known Member

    The quick answer is "ones I don't have to use". A 1:00 version if I plan on going from optic to iron. The YHM's ar pretty solid, like others they don't always clear the optic but that depends on what you have for a primary.
  18. malakili

    malakili Well-Known Member

    Here's another vote for Magpul MBUS (rear sight). Sturdy, light, and gets the job done. I actually use one as the primary sight on my new AR build. They're sure accurate enough and hold zero well. Even though I don't have any optics, the super-low-profile folding function of the sight is handy for when I'm transporting or storing the rifle. If they're folded and out of the way it's less likely something will bump or snag on them.
  19. taliv

    taliv Moderator

    i stopped using BUIS.

    none of the backups have the capability i need for longer range
    i can point well enough at extreme short range, and wouldn't have time to deploy them anyway

    so what's the point? just more weight afaik
  20. Tirod

    Tirod Well-Known Member

    And, for the typical prices some charge for BUIS, you can buy a cheap red dot for backup.

    $238 is exactly why I bought a carry handle sight for $32 and cut it down. It's equally accurate and more durable. $200 more won't do anything better for BUIS, but will buy another red dot.

    If the front sight is mounted on the forearm rail its no longer a free float - the sights will move around with it from hand or sling pressure, instead of staying with the barrel and it's point of aim. There's no guarantee a float is perfectly rigid - if it was, we'd have them attached at both ends and fix the floppy barrel.

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