1/3 folding iron sights

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owlowl

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Hey, does anyone have a good experience with any set of low (1/3 co-witness) iron sights? Preferably foldable. I need to hide them under a variable optic eventually.

I've looked around for Troy but they are out of stock everywhere. Would you recommend anything else I could search for?

Or should I rather get an offset sights and do a cool rifle tilt like cool kids?
 
I have the offset Magpul MBUS Pro and they are very nice if you like the "offset irons" stance.

I would look at the regular (inline) MBUS pro iron sights though, they are nice and flat and should fit under any scope you want with ease.

FYI the iron sights for an AR15 should all be the same height, it's the scope mount that would make it a lower 3rd or absolute co-witness. If you want lower iron sights (like HK416 height) then the only good ones I can think of are Troy micro's they are quite nice and a little over 1/4" "thick" when folded flat. (although as you have already noticed, extremely rare these days)
 
I would think the lower 1/3 co-witness thing though ..

I see no-reason (unless someone can convince me of one) to use lower 1/3 with folding sights. If you need to remove the scope (red-dot... whatever) and raise sights there's really no point to the lower 1/3. All you're really doing is creating a necessity to change cheek weld between the two. Additionally, if I have to look through say a red-dot (that's not removable but dead electronics) I find the image better to look at with the sights in the middle of the glass vs the bottom area

Lower 1/3 to me is when you want to utilize a scope/red-dot etc. with FIXED sights to help get them out of your field of view.

Personally I don't like the lower 1/3 craze at all except for fixed sights. Open to others thoughts though.


owlowl said:
Hey, does anyone have a good experience with any set of low (1/3 co-witness) iron sights? Preferably foldable. I need to hide them under a variable optic eventually.

I've looked around for Troy but they are out of stock everywhere. Would you recommend anything else I could search for?

Or should I rather get an offset sights and do a cool rifle tilt like cool kids?
Click to expand...
 
Well, I kinda came to the same conclusion. With flip sights it does not matter at all. With fixed well, co-witness or just irons I guess. All this field of view issue is nuts really, since optic housing obstructs way more view to begin with, but no one would say drop the optic because it blocks so much view all around.

The only thing I'm still debating internally is offset sights. I kinda like the idea, but hey look so tacticool that I immediately don't want even try.
 
There is no such thing as "lower 1/3rd iron sights.......there is just a standard sight height (with the odd different style, marketed as such).

"Co-witness", or "lower 1/3rd" refers to optic height, not the iron sight. I find absolute co-witness height a bit low when shooting prone.
 
what I find very frustrating is when you purchase a "normal" height set up BUIS and then purchase an absolute co-witness mount for your red-dot and the sights are still in the bottom 1/3.... not right in the middle of the optic with the red-dot as you expected.
 
Yeah, and if you try to find out these heights on all the pieces they all say "standard height/lowprofile" and thats it )
 
madashell said:
what I find very frustrating is when you purchase a "normal" height set up BUIS and then purchase an absolute co-witness mount for your red-dot and the sights are still in the bottom 1/3.... not right in the middle of the optic with the red-dot as you expected.
Click to expand...

Then you bought the wrong mount, or the box was incorrectly marked.
 
does this not say absolute?
h ttp://stormwerkz.com/scope-mounts/picatinny-riser-type-2-mrd-sm-1913-02-30/

does this not say absolute (when not using the small riser for lower 1/3)
h ttps://www.strikeindustries.com/si-t1-riser.html

I can copy the manual that comes with the Holosun where it clearly states the mount is absolute.

All 3 of these mounts are the same height. All 3 companies are labeled wrong ????

I assure you all 4 of the sight sets I have on hand are the same height and not the lower Troy/HK set they offer.

I've e-mailed these manufactures yet to hear anything back.



Falling Hammer said:
Then you bought the wrong mount, or the box was incorrectly marked.
Click to expand...
 
madashell said:
does this not say absolute?
h ttp://stormwerkz.com/scope-mounts/picatinny-riser-type-2-mrd-sm-1913-02-30/

does this not say absolute (when not using the small riser for lower 1/3)
h ttps://www.strikeindustries.com/si-t1-riser.html

I can copy the manual that comes with the Holosun where it clearly states the mount is absolute.

All 3 of these mounts are the same height. All 3 companies are labeled wrong ????

I assure you all 4 of the sight sets I have on hand are the same height and not the lower Troy/HK set they offer.

I've e-mailed these manufactures yet to hear anything back.
Click to expand...

Lol, Stormworkz has a contradictory statement right within their own product description


"This picatinny rail is designed to be used as a riser on any flat-top Ar-15 or M-16
receiver. When used with a fixed base MRD like the Bushnell TRS-25 provides absolute co-witness with the iron sights instead of seeing the dot on the front sight base."

Seeing the dot on the front base is the very definition of absolute co-witness.

As for the Strike Industries mount, if you have a Aimpoint Micro in it....which is what it is deigned for, it will co-witness or go lower 1/3rd just fine with the correct spacer in place.

Buy a proper optic with a proper mount and it will work. I've got standard AR pattern Troy, Midwest, Magpul, ARMS and Knights Armament iron sights and all are at the same height, and all match up to the optic mount height as advertised. What I don't buy, is something like a Bushnell TRS, throw it on someone's random riser, from a company that can't even write a proper product description. and ##### about it not being a perfect height because I didn't shell out for reputable gear.


Also, from Holosun's own website:

"FAQ - Do Holosun Optics Co-Witness?"


"Yes. All of our infinity sights are set up for a lower 1/3 co-witness on standard AR sights. Most of our micro dots come with a high mount, which is suitable for a lower 1/3 co-witness on standard AR sights and a low mount which is suitable for an AK, shotgun or a pistol. We also sell an absolute co-witness mount designed for standard AR sights, which is compatible with the HS403G, HS403GL, HS503FL and HS503GU."


"Which Holosun Optics are compatible with the AACW1.4 absolute co-witness mount? Except for the HS403A, all of our micro red dots will fit on our absolute co-witness mount. That said, the unit is designed specifically for the HS403G, HS403GL, HS503FL and HS503GU. Those are the only optics that will achieve an absolute co-witness height on the mount."
 
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Well, this is why you have to ask for other people experience, rather than expecting "everything to be the only standard way it should be". Because it is not most of the time )

So offset irons, yes no? Any experience anyone?
 
owlowl said:
Well, this is why you have to ask for other people experience, rather than expecting "everything to be the only standard way it should be". Because it is not most of the time )

So offset irons, yes no? Any experience anyone?
Click to expand...

Nothing wrong with offset sights, I quite like them. Either iron sights or a red dot have worked fine for me. My preference of the two is a red dot on the offset vs irons though.
 
The first set I had where the old Dueck offset fixed sights...they were ok but could snag.

After that, I got a set of Knights Armament offsets. I liked those, but they fitted a bit tight to the handguard, and I found on some handguard designs, they didn't fit quite right.

My last units have been Magpul pro offsets, and they have fit everything.

Something else I love are Blitzkrieg illuminated front sight posts....they are worth it.

https://www.youtube.com/watch?v=[youtube]7ejIQa2Ms2w[/youtube]
 
I've had like 4 different brands of folding rear sights, none of them seem to fit cleanly beneath the optics I have. Either my optic ends up too far forward and my eye relief is no good, or they make contact with the ocular bell. It is annoying and disappointing to have to remove your rear sight to fit an optic, when the whole idea was to have the iron sight ready in case you need to remove the optic. Get the offsets and you won't have to roll the dice!
 
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