Magpul MBUS Question

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Noven
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Magpul MBUS Question

Post by Noven » Mon Mar 07, 2011 11:06 pm

I am looking to get a BUS for my AR build and I came across the Magpul line of sights. Since they cost like half the cost of a Troy or equivalent brand, I am a bit skeptical about the quality. Are thees sights really the bees-knees like other Magpul products?
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Re: Magpul MBUS Question

Post by stalin90 » Tue Mar 08, 2011 12:12 am

I was looking into the same thing when i was looking for a rear iron sight. what it seems to come down to is, there is a reason all the other sights are made of metal. Also you might look into a fixed sight, if you plan to run a zero magnified optic. i have a troy fixed sight and plan on getting a eotech and a larue mount which will give me a lower 1/3 cowitness

might check out this vid:
http://www.youtube.com/watch?v=qj3NY2jw ... ideo_title" onclick="window.open(this.href);return false;

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Re: Magpul MBUS Question

Post by nimdabew » Tue Mar 08, 2011 12:46 am

Troy > KAC 600m > KAC 300m > MBUS

I will just leave this right here....


http://weaponparts.storesecured.com/ite ... detail.htm" onclick="window.open(this.href);return false;
Thanks Anianna!
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12_Gauge_Chimp wrote:I say when Wee Drop visits the US, we make her ride a goat. You know, like those little monkey cowboys they have at some rodeos. :lol:

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Re: Magpul MBUS Question

Post by Poondoctor » Tue Mar 08, 2011 1:35 am

Noven wrote:I am looking to get a BUS for my AR build and I came across the Magpul line of sights. Since they cost like half the cost of a Troy or equivalent brand, I am a bit skeptical about the quality. Are thees sights really the bees-knees like other Magpul products?
Magpul "B.ack U.p I.ron S.ights" are made of the same material that their PMAGS are made of - Polymer. I can not give you any advice about how their zero holds up, although I can tell you that if you attach it to a gasblock that has a top picatinney rail it will melt (I knew this beforehand but my silly friend wouldnt budge on the cheap cost and had to have them). Magpul makes some most excellent products and I am sure these are excellent too. However if you use them correctly you wont have a problem. I personally would not use them on my everyday rifle unless the front is attached to a rifle that has a free float tube with picatinney rail. I personally believe magpul designed them to be 'back up sights' as they so happen to be named. For example I have a 24" AR15 Full rifle freefloat 4rail with bipod that does not have any iron sights on the rifle. It only has a Leupold Mark AR scope zero'd attached with an American Defense offset quick detach scope mount. This rifle of mine is an excellent reason to own a pair of Magpul BUIS. What should be dont it put them on the rifle (the rear on the last notch of the upper to 3 notches from the back - Your choice-and the front BUIS on the front of the freefloat tube) zero them in and take them off and place them on the front left side of your freefloat tube and snugly hand tighten them so you can remove them without tools. Then if your scope fails you can remove the scope and place the BUIS on the rifle and have a semi-accurate set of sights for an emergency situation. BUT thats just my 2 cents. Others may have better uses.
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Re: Magpul MBUS Question

Post by Cpt. MelonBuster » Tue Mar 08, 2011 1:39 am

nimdabew wrote:Troy > KAC 600m > KAC 300m > MBUS

I will just leave this right here....


http://weaponparts.storesecured.com/ite ... detail.htm" onclick="window.open(this.href);return false;
Almost everything on that website is sold out.
Last edited by Cpt. MelonBuster on Tue Mar 08, 2011 1:40 am, edited 1 time in total.

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Re: Magpul MBUS Question

Post by nimdabew » Tue Mar 08, 2011 1:39 am

Or you could just leave them folded and then flip them up when you need them. That works too. You know, because if you do take them off, they would have lost their zero and what you think you are shooting at is not what you are hitting. YMMV.
Thanks Anianna!
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12_Gauge_Chimp wrote:I say when Wee Drop visits the US, we make her ride a goat. You know, like those little monkey cowboys they have at some rodeos. :lol:

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Re: Magpul MBUS Question

Post by nimdabew » Tue Mar 08, 2011 1:41 am

Cpt. MelonBuster wrote:
nimdabew wrote:Troy > KAC 600m > KAC 300m > MBUS

I will just leave this right here....


http://weaponparts.storesecured.com/ite ... detail.htm" onclick="window.open(this.href);return false;
Everything on that website is sold out.
... FUCK. I was going to buy a cheap ass Troy from them in a few months too. Oh well, I guess I will just shell out the extra 30 bucks :/

So much for ice cream cones for a week

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Thanks Anianna!
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12_Gauge_Chimp wrote:I say when Wee Drop visits the US, we make her ride a goat. You know, like those little monkey cowboys they have at some rodeos. :lol:

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Re: Magpul MBUS Question

Post by nimdabew » Tue Mar 08, 2011 1:44 am

Not everything is out of stock. There is some stuff on there that is still in stock.
Thanks Anianna!
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12_Gauge_Chimp wrote:I say when Wee Drop visits the US, we make her ride a goat. You know, like those little monkey cowboys they have at some rodeos. :lol:

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Re: Magpul MBUS Question

Post by Cpt. MelonBuster » Tue Mar 08, 2011 2:08 am

See my edit. :D But a good 3/4 of their products are out of stock from what I can tell. Pretty weak.

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Re: Magpul MBUS Question

Post by Civilian Scout » Tue Mar 08, 2011 6:49 am

I have an MBUS rear sight that has been on my 10.5" LMT upper since the MBUS were first released. It's been used quite a bit, has even been whacked pretty hard on a few occasions, and hasn't lost zero, hasn't broken and hasn't melted. Sample of one...

I did not care for the MBUS front sight. The way the sight post was retained seemed questionable, and the sight picture was cluttered by the bulk of the sight itself and the enormous wings on either side of the post. Sold mine in less than a week.

Gen 2 MBUS sights are shipping now. They have slimmed down and refined the design, and are a big improvement.

My only complaint with the Troys is that you can't fold them down with the small aperture selected - a personal preference - but they are certainly great sights. My favorite is the KAC 600m. Wonderfully streamlined and simple. I haven't tried the newer Micro version.
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Re: Magpul MBUS Question

Post by FreuderLocks » Tue Mar 08, 2011 9:45 am

At the LGS where i used to work I had this experience: (with the MBUS)

A gentleman, about 70, claiming to be SF and probably was. Came into the store looking for some backup Irons for his extremely short AR, it had something like a 7 inch barrel or something rediculous like that. It was so short that his handguards where longer than his barrel and the front of the rails covered about 1/3 of his suppressor! 'Neat' I thought. He was dead set on spending less than $100 for backup Irons for his rifle. I tried as hard as I could to dissuade him from putting MBUS on his rifle as it was clear to me, right there and then, that they would melt. He was back in the next day that I worked with that exact problem and he was PISSED. It was a perfect 'I told you so' moment. What I learned from this experience was, as long as you can mount those irons in a cool place they should be fine. I have had other customers beat the living crap out of those things, even partially melt them and they not only flipped up and locked down but still held a zero. Good product, I guess, but not made for super shorty rifles by any means. Personally I would go with something else as even resisting melting isn't enough for me, melting shouldn't be a consideration one has to make regarding sights. Metal sights FTW.
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Re: Magpul MBUS Question

Post by Makarov » Tue Mar 08, 2011 9:55 am

As backupsights the MBUS'll do good enough, but if you're going to use them as primary's at some point I think you're best served buying something else.

Some questions; what's you're budget? Do you need a set or is it just the rear sight? Must they be flipup or can they be fixed?

Daniel Defense and Troy both makes fixed BUIS that don't cost that much more than the MBUS sights. And if you're on a budget and want a metal flipup, the Matech rear sight is a cheap good option too(they go for $20 - $50 on Ebay).

And if you really need flipups front and rear, LaRue has the best deal(at least last time I checked) on the Troy set's.
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Re: Magpul MBUS Question

Post by jrswanson1 » Tue Mar 08, 2011 12:50 pm

Yes, they're BACKUP sights. MBUS stands for Magpul Back Up Sights. I own a couple of sets of them, they make great BACKUP SIGHTS for rifles that have optics as their primary sighting system. They do hold their zeros, which is how I check if my primary sights (Aimpoint) have moved if I have to take them off. In conclusion, the MBUS system is a good BACKUP sight system. If you want to run irons as a PRIMARY sight system, get a fixed sight. Thank you :lol:

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Re: Magpul MBUS Question

Post by Silent Fire » Tue Mar 08, 2011 1:03 pm

My carbine still has the front site block in place, so I only have experience with the rear MBUS. It's not meant to be precise or perfect, but under 100 yards it will work just fine. I have a DD 1.5 fixed rear which was legit, but since the Aimpoint R1 is now mounted, I switched back to the lower profile MBUS.

I definitely would not use them by themselves. As Swanson said, the "BU" in the middle stands for backup. Don't use them as your primary sighting system. Hitting what you aim at is worth the extra money.

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Re: Magpul MBUS Question

Post by Laconic 24 » Tue Mar 08, 2011 5:40 pm

Never had any trouble with mine in the ~2years they've been on my rifle.

If you're planning on using an optic on your carbine, the MBUS would be a great choice. If you'll just use sights, spend the extra money for the Troy.

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Re: Magpul MBUS Question

Post by gun toting monkeyboy » Tue Mar 08, 2011 7:35 pm

I like the rear MBUS more than the front. But they are only adjustable for windage. I have them as back up sights on a couple of guns, and they work well enough. A bit chunky, but reasonably good. I have a couple of the front ones as well, but I only mount those on the rails, or on a JD Machine rail height gas block, as that has enough holes and surface area to work as a decent radiator. For the most part, they are only used on my range guns, or on guns with optics as the primary. If there is any likelyhood that I will be using them more than once in a while, or I might really, really need them for something more than varmints or paper, I spend the extra $30-50 bucks and get a good BUIS, made from metal.

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Re: Magpul MBUS Question

Post by Kommander » Tue Mar 08, 2011 10:17 pm

I have a rear MBUS sight on my Sig 556 and it has worked well. Just be sure to use some threadlocker.
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