Shooting groups with M4/AR - options for optics

[Maineshooter]

I bought the rings for a Nikon P-223. They are 1" rings. Got rid of the P-223 and use the same rings for my Leupold 2x7 ultralight. Still loving those rings.

Are these the rings you are referring too?
http://www.sportsmansguide.com/net/c....aspx?a=993875

[eperk]

Are these the rings you are referring too?
http://www.sportsmansguide.com/net/c....aspx?a=993875

Yes, and for the price they're a steal.

[gman556]

For shooting groups, and testing/working up loads, I use a Nikon P-223-3X9X40 IN A LaRue SPR/M4-EER.

I use it on both my AR's. I switch back and forth all the time, and it holds zero at 100yds on both AR's. The cool thing is that I have it zeroed on my favored AR, and all I have to do when I mount it to my other one is click the windage and elevation a few clicks, and it's zeroed to that one.

I mainly use an Aimpoint T-1 in a LaRue t660, and an Eotech EXPS3-2. They both return right to zero when I'm done playing with the Nikon.

This set up works great for me, YMMV.

[Agnostic]

How about the aero precision mount that is currently being discussed in a current thread? It is only 3oz, and it is listed at $84.99 on the manufacturer's website.

I know nothing of it other than the information in the thread and the information on the manufacturer's website (link in the current thread). But, it is another option.