View Full Version : I知 looking for the best iron sights for AR-15 for use in 500M service rifle shoots.

04-11-2012, 9:37 AM
The standard sights cover the entire target, and thinner post fuzz out on me. What痴 out there?

04-11-2012, 10:07 AM
Clarify "standard sights cover the entire target". Are you saying the front sight post is as wide or wider than the target black? If so, how much wider?

04-11-2012, 10:11 AM
Are you saying the front sight post is as wide or wider than the target black? If so, how much wider?

Yes, the front post is as wide as the target @ 500M

04-11-2012, 11:07 AM
Man you guys rock!

I can't see well enough at 500M to even consider shooting w/o a scope.;)

04-11-2012, 12:41 PM
You can buy different size front sight posts. White Oak sells them in 0.040, 0.045, 0.052, 0.062, and 0.072 inch widths. Experiment and find which works best for you. What type of sight picture do you use...center of mass, 6 o'clock?

04-11-2012, 1:58 PM
I've always aimed center of mass. I don't think I have enough height adjustment to aim at 6 o'clock.
Even if there was I would mess up as I'm too old a dog to learn new tricks.

I'll try some different posts.

04-11-2012, 2:45 PM
Check with Creedmoor about availability of the SR Microsight. It allows for both the front post and the target to be in focus at the same time. Regarding your front post, I use a .034 post and it allows me to allign the sides of the post with the sides of the black portion of the target minimizing windage error. Then it's just a matter of cutting the black dot in half. For High Power, all your sight pictures should look the same as the target increases to maintain perportionality.

04-11-2012, 3:34 PM
The difference between aiming center-of-mass and 6 o'clock is only 3 minutes of angle. If you the height adjustment to do COM, you should be able to do 6 o'clock. The 6 o'clock hold will give you a much more distinct aiming point.

The SR microsight seems like a popular accessory for those with vision issues. Also, before the microsight was available, people used the rear sight inserts from here:


04-11-2012, 3:48 PM
I find I'm more accurate with a front post that's wider than the target black. Same size gets a little lost, thinner gets totally lost if the light's not right. Oversized lets me focus on the front sight and center the black on the post.

Or look at a microsight.

04-11-2012, 4:27 PM
Did you shoot in Sat.'s service rifle and pistol shoot at TSA?

A number of the guys down there are using the KNS "cross hair" post for their front sight. Info here: http://www.midwayusa.com/product/504604/kns-front-sight-standard-crosshair-reticle-ar-15-matte?productNumber=504604
And others are using a very fine post. You can get an assorted pack and play with what works for you. Check out here: http://www.midwayusa.com/product/427154/kns-front-sight-post-assortment-ar-15-matte-package-of-7

I am using a different setup, but am using a fine cross hair insert. My main problem is my eyes are getting really bad and it is hard for me to focus on the sight. The last service rifle shoot I shot in I could not even see the 500m target. It was just a orange blob. I only hit it one time....luck.

Take care,Stan

04-11-2012, 4:35 PM
Hey Stan,

Yes, I started shooting the TSA service rifle shoots midway through last year. Then at the end of the year I saw they had an overall trophy for high score of the year. My goal this year is to win that trophy with one of my homemade rifles.

So far I'm about 5 points ahead of the pack and I want to stay ahead.

04-11-2012, 4:40 PM
Ok...know who you are now. I was not at the last service rifle shoot. I am the guy shooting the 18" JP (the rifle a lot of folks complain about being so loud) and am affiliated with Chipley Arms.
Might catch you at the next one. I am trying to get into the eye doc for some new shooting classes so I can see again.

Take care,Stan

04-11-2012, 4:44 PM
I was looking at the mill Chipley Arms has for sale just a couple weeks ago. Small town USA.

04-11-2012, 8:14 PM
For me the only usable sight picture is a six o'clock hold with a small clear line under the bull. The front sight must be sharp and clear, the target can be a grey fuzzball and you can still shoot good scores.

04-12-2012, 8:42 PM
I shoot with a .052" NM front sight post. That's about the most common thin post you'll find. That being said, thinner is not better.

There's an issue of sight fade that you may/can experience with thin front sight posts. What will happen is that you will 'lose' the front sight post when holding the sight onto the black (whether you're using center hold or 6 o'clock). You'll bleed the sight into the black and start shooting high. I compensate by using what I call "line of white" hold. But the correct methodology would be to use a wider post.

But again, having a thin post doesn't mean you'll have a 'finer' hold. Practically speaking, you should not be too concerned with how wide the post is perceived in relevance to the target black (within reason), *because* you should be focused not on the front sight post blade, but that very small spot of the front sight post blade that is the center.

You will often find that veteran high power rifle shooters (shooting the service rifle) will actually be using wider posts (e.g. .072") and even a standard milspec width post that has been tapered on the sides to eliminate side glare.

But if you are set on trying a thinner post, I would suggest trying a .072". I wouldn't immediately go to .052".

04-12-2012, 9:21 PM
I ordered one of the multi front sight post sets to try some different ones out.


Also, whats the opinion on this? Looks neat but the adjustment and practicality seem stupid.

04-13-2012, 8:17 AM
Also, whats the opinion on this? Looks neat but the adjustment and practicality seem stupid.
That's the KNS reticle sight. Works very well. Since a target AR will not be going into combat, the rear BDC is used for final elevation zero. You simply have to know your come-ups, as the rear drum will not be clicking on the correct marked lines for a given range....unless you get lucky and this front sight zeros with no change to the rear.

I've had a couple for years. While no good for rack-grade competition, they perform very well for long range when you have more time to precisely align everything.

04-13-2012, 8:29 AM
I have tried the 6 O'clock hold of a couple of hears, it worked ok, now I do the dead center hold. I think the most important thing is to work on being consistant with whichever hold you use.

04-13-2012, 8:52 AM
I wrote this awhile back: http://www.ocabj.net/?p=760

It has some relevance to the conversation.