Had this thing for a few weeks now and I can only say that this thing is great! I chose this over the higher (adjustable) version obviously because of the lower price. However, this is fine with me as this thing makes my G4-A3 SP as loud as i need! I was impressed at how a simple attachment of this flash hider could amplify the noise of my G4 so noticeably.
Upon taking it out a few times and to the local store, people have come up to me to say they like the flash hider on my rifle. I have to say in my opinion, I do agree that this thing just looks great on mine and I'm enjoying the compliments I'm getting!
The only drawback I can see on this flash hider is that the black finish on it can chip/scratch off easier than I thought, and this being on the very front of the gun you may have to watch out for bumping it into things if you care about the aesthetics of it. However, this doesn't really bother me and it's not as bad as it sounds if you're not slamming your AEG into things. Overall I'd highly suggest it to anyone who is looking for a loud sound amplifier that will make their gun look great.
Cheaper alternative than the adjustable version
Under a minute to install
Great solid feel/quality
Black finish comes off/chips easier than expected