i bought marui ak74mn (blow back ver) today!
it was so perfect.
good:
1) when u shoot your last shoot, no more bb bullet stay in magazine.
2) full metal
3) new design on gear box
4) good sound when blowing back.
bad:
1) on can fix 8.4v batteries inside the front side.
2) need to buy new design magazine, cant use the old one
cost: $2650 (gun) & $195 for 480round magazine