Legal mags for AR's ?
I just bought a new Armalite AR-10A2 It has the 10 rd. mag for it.Can I buy and use a larger ,say 20 or 30 rd. mag and not have to worry about headin for Sing Sing? These laws are like huntin regs., ifs ,where as ,stated by, here in,bla bla bla .Why the Feds just wont do it so they can just say "no' ya cant , or "yes" ya can is beyond me.Thanks