Question about A2 rear sight (not marked 8/3 or 6/3, but 0 5 10)

AR-15 » AR Discussions

AR Sponsor:

[ARCHIVED THREAD] - Question about A2 rear sight (not marked 8/3 or 6/3, but 0 5 10)

Posted: 10/20/2004 12:15:33 PM EDT

I bought a cheap detach CH because I wasn't going to shoot iron sights most of the time with my AR15 and found that the elevation wheel wasn't marked 8/3 or 6/3 but had 0, 5, and 10.

I thought I read something here that explained the how to use this type of wheel but I couldn't find it with the Search feature.

Any ideas?

Would I be able to swap in the real A2 wheel?

Posted: 10/20/2004 12:22:06 PM EDT

[#1]

That is the 'match' elevation wheel. It's calibrated in # of clicks (which are about 1 moa per click).

Yes you should be able to swap for a standard wheel.

Posted: 10/20/2004 1:04:19 PM EDT

[#2]

I used a pic of a DPMS standard A2 index wheel to compare and it takes about 3 clicks to get from the "8/3" mark to the "4" mark on my wheel. So it looks like a 1/2 MOA wheel?? I thought it was 1/4 MOA for the NM/Match wheel?

Posted: 10/20/2004 1:08:15 PM EDT

[#3]

Detachable carry handles are supposed to use the 6/3-marked upper wheel halves, and have a tighter thread pitch with approx 1/2 MOA clicks.

A2 sights have courser threads with approx 1 MOA clicks, and elevate twice as far per revolution of the wheel (necessary to reach 800m). Their upper wheels are marked 8/3.

All you need is a 6/3-marked upper wheel half.

-Troy

Posted: 10/20/2004 1:10:23 PM EDT

[#4]

Quoted:
I used a pic of a DPMS standard A2 index wheel to compare and it takes about 3 clicks to get from the "8/3" mark to the "4" mark on my wheel. So it looks like a 1/2 MOA wheel?? I

Detachable (6/3) wheels are in 1/2 moa increments, fixed are full 1moa increments.

I'm stepping out for some caffine - obviously I need to wake up (because you were asking about a detachable handle).

[ARCHIVED THREAD] - Question about A2 rear sight (not marked 8/3 or 6/3, but 0 5 10)

AR-15 » AR Discussions

AR Sponsor:

Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.

Warning

Confirm Action

About AR15.COM

Stay Connected

Newsletter

Contact Us