GX E-5K2 Air Compressor

looks impressive 'but' chinese .. if your worried about money spending at that level i'd get an american based compressor build and spend a bit more .. my guess is parts and warranty will be close to non-existent, although it may last you for a long time .. build looks solid enough ... personally i'd go one of 2 ways - a 'tuxing' for ~300 or a gas or electric powered american high capacity compressor for ~4-5k, assuming you live in the US ...
 
I looked at the GX (on line) but ended up going with the TurboCharger from AOA, which the GX resembles with some significant differences. https://www.airgunsofarizona.com/compressors/omega-turbo-charger-4500psi-compressor/

Yes, it’s Chinese but the reviews are mainly very good and I’ve dealt with AOA for many years and they’ve never let me down. It helps that I’m fairly local to them so I don’t normally have to have things shipped. I just ordered a TrailCharger today for summer RV travel and it’s expected to be here next week. You might want to call them and talk about availability and ask them to compare the GX to the Omega.
 
I’ve had the gx for a while now, I honestly wanted the turbocharger and none were to be found. The gx and turbo charger are a lot alike, both twin cylinder and the same style pumps. The turbo adds auto purge and a nicer gauge. So far I have been directly airing my guns up and I’m right around the 4hour mark. I would not recommend it for guns with small air cylinders just because it fills pretty fast which builds heat in the cylinder of the gun. I do really like how quiet the compressor is and very little maintenance, I did the videos on amazon. I’m still happy with my purchase and the seller was pretty responsive through the process. 
 
I checked out the compressor as well as I could before purchasing and eventually decided against it. Not because I thought it was any better or worse than the Omega Turbo Charger. I talked with Jason, the sales rep for GX and he assured me that their compressor and the Omega were VERY similar, however ... the fact is that they do not have a service center in the US. The servicing goes something like this according to Jason ... they do offer free replacement parts and they need the end user to supply the details about what is wrong with the compressor including videos (if necessary). Then their supplier, the factory who makes the compressor will judge the problem and determine what happens next. Jason says the obviously this will be a little slow to solve the problem, also not so accurate. But for our small 12v compressors, there is almost no this kind of unclear problem if buyer provides the details. For GX E-5K2, actually this is a second generation and we have not heard quality problems, they performs very well until now.

Personally, I would have had no problem buying the compressor if they had a service center in the US, but I have had experience with the Omega brand, both the Air Charger and the Super Charger and the odds are excellent that at some point within the life of the compressor you will have to have some kind of service done ... especially for folks like me who are not all that mechanically inclined and the idea of trying to explain to someone in China who probably doesn't speak good English, exactly what has gone wrong with a compressor when I don't know myself. Well, it just doesn't give me a lot of confidence.

As far as the compressor goes, it is probably as good as the Turbo Charger. In fact, the advertising says that the two pistons are sufficiently independent of each other that if one were to slow down and even stop working, the compressor will continue to produce pressure with the remaining piston, but at a slower rate than normal.

I am not saying that it is a bad compressor, but any and all compressors will need servicing at one time or another. If you are a good mechanic and can analize problems common to compressors and re-build them yourself, then more power to you, however I am not so blessed.

Shalom

John