Postby Airsoftman1 » Sun Jun 03, 2012 10:27 am
Because G&G is too dumb to realize their blowback sucks and to stop making it.
The bolt is pulling back the spring on the dust cover, that's why it opens when you fire.
ARMORY
Agile AL-3100
Marshall JCM-2000 + Marshall JCM Cab
JG M733 Enhanced
VFC M4 (not sure which one it started out as)