So I've had this gun for a while now, and I have some mixed feelings about it. The finish of the gun is spectacular. KWA could not have done a better job making a good looking gun, and it also feels good in your hand. This has got to be one of the most comfortable guns I have ever held. More so than a Glock, 1911, M9, M93R, and it just surpasses the Sig Sauer P226(remeber that is a personal opinion), The gas efficiency is through the roof, I can get off so many rounds on one fill; this gun is the Toyota Prius of airsoft. With that said, the Prius does has it's drawbacks. For one, the kick, while being very crisp, is minimal. I can barely feel that I'm firing a GBB. This is thanks to the ultra light aluminum slide, which helps with cycle rate but it keeps the recoil felt to a minimum. It seems very reliable but when fielding it at 12 AM with the temperature dropping around the low 50's high 40's, the gun started to do some odd things. It would barely cycle(barely being the operative word, it still did cycle), sometimes firing a 3 round burst, and then occasionally not lock back on the final shot. My WE G18c on the other hand was performing all night. When I got home, the KZ75 required a heavy cleaning, while the WE was fine. I'd also compare the KZ75 to an M4; reliable, though slightly weaker, and requires maintenance to perform. I won't complain about any accessibility issues when it comes to using the slide release and such because that won't be KWA's fault(but it is somewhat difficult to reach). I think KWA failed to invest as much as they could have into this gun, seeing as it is one the outliers in terms of popularity.
-NS2 system (No cooldown)
Orange tip is a part of the barrel. Non removable
Outperformed by my WE, expected a lot more from KWA
Parts accessibility (Almost no upgrade potential)
Overall, it's a great gun, just not KWA's best. 4 out of 5
Rating: [4 of 5 Stars!]