Brass Hunter brass catcher for AR
 

I have been using the Brass Hunter brass catcher on my 458 SOCOM because the brass is so dear.
It works well. The only problem I've encountered is sometimes the dust cover interferes with taking it off, but with a little bit of fiddling I can get it off. The dust cover operates fine however.
https://i.imgur.com/XOcMqpi.jpg