
Me I like the Internal mag systems better, you can't lose them, can't forget to bring em, their quick to load if you run out and need a quick shot, can be used as single feed only without having to much around with removing a DBM inserting a round and reloading etc, their better if you don't take a shot and unchamber an unfired round, a quick push in and the rounds back in the mag where as most box mags require the removal of the mag to reinsert the unused round.
Anyway give me you version as to why one is better/not better than the other.