Postby Airsoftman1 » Wed Feb 01, 2012 7:32 pm
I've heard that you should replace these parts from previous reviews of G&G M4's
Spring
Motor
Piston
Hop-up
Hop-up Bucking
Air Nozzel
I'm not sure if you need to replace ALL of those parts, but thats just what I've heard from other guys.
ARMORY
Agile AL-3100
Marshall JCM-2000 + Marshall JCM Cab
JG M733 Enhanced
VFC M4 (not sure which one it started out as)