Why would anybody buy a car without an automatic transmission?
except in this case. the pump isnt better than a semi auto. i love manual transmissions (real ones, not this paddle/SMG crap) but gas system is WAY stronger than the pump. an AK's gas system just rips a shell out of the chamber with such force its unbeatable by the human arm. this si so the AK can cycle the most outta spec ammo in a dirty chamber. the pump would be difficult and awkward to use if you ask me