Nice!!!!!! I hope they are cheaper (relative term), than the SS feed lipped Butler Creek 30rd mags.
Although SS feed lips are the way to go.
Rugers web site lists them for $29.99 (they are back-ordered already), so they are about what the Butler Creeks go for around here. Maybe, just maybe, when Ruger gets enough of them made to start selling to Midway and other places, the price might even be a bit cheaper.