CMMG has stopped production of the Evo mags as they were supposed to be too expensive and time consuming to make. The stock spare-parts is being assembled and in fact some US retailers were still offering some small quantities but would not export.
Anyway CMMG is coming out with a new magazine in November that they claim will function with the BHOA and will be similar in appearance to the Magpul Pmags.
Can't wait
