to those who are still wondering for mag efficiency,i thought this may help:
here's the link ^^ http://www.apoh.net/reviews/57/TM_de_hk_blk.html
by the way,i'm new here so,nice to meet u all
oh and shao14,your review has succesfully made me rethink,whether to buy this or Kart M14 EBR.....T_T.....
any suggestions?