Originally Posted by R.I.T.Z
I used to own a G&G m4, I had the body swapped out with a King arms metal one. almost every armalite style mag will fit into the reciever (except ptw) Star and King arms mags have given some feeding difficulty. Are your p-mags greenlabel (cheap boxed set) ? because they have been know for some feeding problems. G&P + MAG are by far the best magazine producers for the price and fit quite flawlessly
Does cost in magazines make a difference?My pmags are like $30 each so i'm not sure.