Flat-top iron sights

[michael_aos]

No one else makes a rear BUIS that will line up with that non-standard plane height Hayes front BUIS.

I expected that.

When I eyeball it, that Hayes Research front sight just doesn't look that much lower than my PRI flip-up or Troy Industries flip-up. Guess it doesn't take much though.

I may mount the Hayes Research and Troy flip-up front on the same rail for comparison.

Mike

[mightymouse]

I expected that.

When I eyeball it, that Hayes Research front sight just doesn't look that much lower than my PRI flip-up or Troy Industries flip-up. Guess it doesn't take much though.

I may mount the Hayes Research and Troy flip-up front on the same rail for comparison.

Mike

If you're going to measure, get or borrow a set of calipers and measure from the bottom of the mount (the rail top) to the middle of the apeture (rear) or post (front) and compare the measurements. If indeed the Hayes are standard height (which they don't look to be) then the problem is how you're aligning your hat rack to get your sight picture.

[michael_aos]

If you're going to measure

Maybe after the cat has finished her nap.

[mightymouse]

Maybe after the cat has finished her nap.

Well I see that you have a target to zero with already.

Top of my Colt HBAR rail to the middle of the USGI Matech rear sight: 1.30

Yah, you're screwed. Either put both your front and back sights on risers (ugh) or get USGI compliant BUIS.

[michael_aos]

Either put both your front and back sights on risers or get USGI compliant BUIS.

As I said in the post that started this topic, I don't much care for the rear sight, but I like the front sight.

I was hoping to avoid it, but I fully expected to have to raise the front sight. Knowing I need to raise it .3" is useful. Thank you.

Now back to the topic of a good elevation-adjustable CQB-type rear sight. We've seen there are several options. Is there anything to distinguish one from the other?

Mike

[mightymouse]

Now back to the topic of a good elevation-adjustable CQB-type rear sight. We've seen there are several options. Is there anything to distinguish one from the other?

No, they all suck equally. I keep telling you that cobbling together non-USGI compliant parts with USGI-compliant parts is a short path to long headaches. But for me, the best thing about beating your head against the wall is that is feels SO good when you stop.

[michael_aos]

I keep telling you that cobbling together non-USGI compliant parts with USGI-compliant parts is a short path to long headaches.

I'm pretty sure that's the first time you've actually said that.

What I'm actually asking about is a USGI rear sight. Sorry if I wasn't clear each time I said that. A good USGI-height, A2-style rear sight. Lets just forget there's a front-sight in the equation.

No, they all suck equally.

Simply by virtue of being adjustable for elevation? You'd think in all the years since the military adopted the A2, somebody would have figured it out.

BMAS, LMT, YHM -- all suckage?

[michael_aos]

If you're going to measure, get or borrow a set of calipers and measure from the bottom of the mount (the rail top) to the middle of the apeture (rear) or post (front) and compare the measurements. If indeed the Hayes are standard height (which they don't look to be) then the problem is how you're aligning your hat rack to get your sight picture.

From the top of the rail, to the top of the post on the Hayes Research fixed front sight measures pretty much exactly 1.0".

Mike