Yea GI has put on alot of extras that make the G4s all nice and stuff, but the core of the gun is where this series really shines. It is an amazing base to build off of, I dropped in an M120 spring, spring guide, piston head and cyinder head. Haven't had problems and I have used 5 or so bags of G&G bbs through this baby.
I initially picked up this gun, cause im not a big fan of the daniel defense rails, or really the dragon fire. So, what I did was got one of those Noveske rails and dropped it in. It is really great for any upgrades someone might plan.
Almost the same price as the combat machine blowback, except the internals, externals, and accessories are far better.
Solid plastic body
Not so nice Flip up Front sight, looks a little awkward, but its easy to remove.
starts relatively low fps, for field games atleast
Rating: [4 of 5 Stars!]