This is my first AEG. Shortly after the warranty expired, an AEG tech friend wanted to open it up since he heard me bragging about it. He was thoroughly impressed with the gearbox! He's been into airsoft for 7 years and has never seen such quality for a AEG at this price. I've used it roughly 5 times now, going through maybe 3k BB's (light trigger finger) and I've had ZERO issues.
YES, you can fully customize the exterior of this weapon with all metal or higher quality parts. It is NOT an LPEG!
Upgrades so far:
A Magpul MOE stock fits perfectly (did this as an experiment with my friends)
Minor Shim job (my friend said from the factory it's the best shim-job he's ever seen on a lower priced AEG)
Was going to replace the faux-bearings but I got 6mm when they are actually larger (7mm?). I'll eventually replace them.
11.1v Lipo with deans and lipo alarm. (so far so good)
Magpul PTS MOE hand guard
NCStar reflex redot sight (perfect combo for this weapon)
ROF ~18/sec with the 11.1v Lipo
347 FPS with 0.25's consistently
The plastic body is fine, just a few components suck
Just as accurate as my buddies $500 KWA CQR with a tight bore
Easy to mod the exterior
Solid entry level gearbox
Hasn't jammed yet
Ball bearing spring guide
And a ton of other little gearbox details I'm forgetting
Vertical grip is garbage
Battery is garbage
Battery charger is garbage
The buffer tube sits at an odd angle and isn't correctable unless you replace the receiver if I remember correctly. This doesn't affect aiming or performance.
Butt stock is a tad wobbly (nit picking)
The orange flash hider took some work to remove (heat with heat gun for 5 minutes or 20 with hair dryer and then remove the 1.5 alan screw on the bottom)
The grease used in the gearbox isn't the best. After a few thousand bb's, clean it out and regrease with something better.
Rating: [4 of 5 Stars!]