Ultra rapid magazine changes are a gimmick which comes from pure sport where timer matters. In a combat situation it is not a factor. If you are alone and there is no support fire from other people on a team - rapid mag change does not matter, you are dead anyway. If you are in a position where cover or concealment is not available and say 2 extra seconds of mag change matter you will be dead anyway, just after you are out ammo in your second mag.
IPSC and similar disciplines will get your killed faster in real force on force than help you. Even 2 -3 second advantage for magazine change, which is HUGE, is totally negated if your weapon stop functioning or magazine jams. In a sport it is just "well, no luck, stop the timer, you failed a stage", in a combat it is minus one shooter plus one helpless target for an enemy.
By the way, if you don't care for your magazines and are willing to drop them down from the magwell to the ground, you can also do that with rock and lock quite fast:
Moreover, in shooting sports you count milliseconds doing same mag changes standing, you see a difference. Now drop on a ground, on your side or prone, in a mud, near freezing temp with a mittens on and see if mag well is any faster than rock and lock. You will struggle more to get your fresh mag out from the pouches when locking it in.
IPSC and similar disciplines will get your killed faster in real force on force than help you. Even 2 -3 second advantage for magazine change, which is HUGE, is totally negated if your weapon stop functioning or magazine jams. In a sport it is just "well, no luck, stop the timer, you failed a stage", in a combat it is minus one shooter plus one helpless target for an enemy.
By the way, if you don't care for your magazines and are willing to drop them down from the magwell to the ground, you can also do that with rock and lock quite fast:
Moreover, in shooting sports you count milliseconds doing same mag changes standing, you see a difference. Now drop on a ground, on your side or prone, in a mud, near freezing temp with a mittens on and see if mag well is any faster than rock and lock. You will struggle more to get your fresh mag out from the pouches when locking it in.




















































