New barrel (optional)
New trigger (optional)
Alright when I first bought this gun I was somewhat skeptical about it because I usually play with mechanical. I had to look at review after review until I knew for sure that it was a well put together marker. The first time I played with this it was woodsball because that is all I play. It worked so well in this bushes and rugged terrain. The only main problem I had with it was the feedneck because it raised my eggy 3 very high and got shot. It was pretty loud, but that was an advantage somewhat because when people hear this thing they think it will pearce their skin. ; ) The only time I chopped with this gun was when I forgot to turn on the eyes and was using crappy paint. I have used this gun in almost every weather condition you could think of and it still keeps working as if I just bought it.
If you can find a gun this cheap that is electric and has eyes, that is a great deal. The upgrades are minimal because there aren't too many upgrades, but the upgrades you can get are not severe or pricy. The eyes work very well, I have never had a chop when using them, but make sure if you ever chop with this gun clean the eyes or they won't work right.
Starting with the feedneck as the mainweakness. I would recommend the ccm clamping feedneck. This will help a lot in the long run because the nasty extra plastic piece that you have stock with it is just too high and will get your hopper shot easily. Just as my opinion I would go with a new barrel because the stock is only 9" and loud. The whole trigger wobble is just another optional upgrade because it only has a little looseness to it.
Overall this gun is a reliable electric gun for a beginner or someone with low cash. This gun won't let you down.