For the amount of reload speed you lose with Extended mag the increase to bullets is just not good enough. On a 140 hand cannon Extended mag gives 3 bullets and takes away 20 reload speed. Appended mag gives 2 bullets and doesn't touch reload speed. Tactical mag gives 1 bullet, 10 reload and 5 stability. So why on earth would i pick Extended mag when i get zero benefits from it. On a 340 Pulse rifle Extended mag gives 9 bullets and removes 20 reload speed. Appended mag gives 6 bullets. On a 600 Auto rifle Extended gives 8 bullets and removes 20 reload speed. Appended mag gives 6 bullets. You get the idea. There is only one real reason to why you would pick extended over any other magazine perks, and that is if you are using, Overflow, Subsistence or Rewind rounds. Perhaps even auto loading holster. Either add more bullets to it or reduce the reload penalty. For 140 Hand cannons, there is no real reason to use Extended mag when Appended mag gives 1 less bullet and leaves the reload speed alone. Perhaps increase it from 3 to 5 bullets or again reduce the reload penalty from -20 to -10