Magpul just announced their Pmag M3, an improved version of the Pmag, as well as some additional accessories. I'd wait until they're released, and some user feedback has come in before buying any significant quantities of current-version Pmags.
OR....perhaps this spring will be a great time to pick up the older version pmags in large quantities for low prices, new or used.
PMAG MAGAZINES - PMAG 30 M3, 5.56x45 Magazine – AR15/M16
