What sort of accuracy can I get out of this? http://www.dpmsinc.com/store/products/?prod=253&cat=1928
I have too. I got two 20 rounders and two 30 rounders in a package deal with some other stuff. The 20s have been great. The 30s not so much.I've had good luck with the 20 round USA frankenmags. They're out of production but findable on Gunbroker and arfcom's EE.