Just went to Keith's Sporting Goods in Gresham today. On the clearance table, they had a fresh box of polymer mags from Thermold for AR15's. They said they fit the NATO5.56/.223 rounds. Price is $11 each or 2 for $20. The sales rep told me if you buy more than 2, they're $10 a piece. Can't beat $10 a pop.... Hurry and get them. Yesterday (Saturday) they had a fresh box of mags on clearance and I picked up 4. There was still around 12 or so when I left just before closing time.