On one thread a few guys were interested in places to order AR500 where the shipping wouldnt eat them up. I have not personally ordered from here but a friend of mine has and Ive seen the plates. They look good to me. Site says free shipping for orders over $99. I need to order some stuff some day.
https://shootingtargets7.com/store/
https://shootingtargets7.com/store/