I have ordered AR mags from that site before and was very happy with the service.
Good find. These mags are going for $100 scalper prices on the auction sites.
I just took delivery on a M&P Pro 9L about an hour ago---looks like I need
to decide if I want to pay semi-scalper price for some mags. MSRP
is $42, and real world prices before the craziness was around $35, so
$60 really isn't totally a rip-off.
I just ordered my 9c today. I did find the extra factory magazines pretty pricey on GB. I'll keep looking online but in the meanwhile I found a 32 round at CTD (I know, I don't like shopping there either) by Mag-pro or something like that. It'll probably have feed problems but for $25, what do ya lose? It should be good for a few strange looks at the range.