GX Pump (manufactured by Nantong Guangxing Pneumatic Equipment Co., Ltd.) is a specialised manufacturer of high-pressure PCP air compressors. With over 20 years of experience, their product line is quite vast. It includes compressors and their accessories, as well as manual pumps like hand pumps. Based in Jiangsu, China, where the world’s best production facilities are located, according to many. Known for affordable, durable, and reliable airgun/paintball compressors, you can’t be a PCP enthusiast and not know of GX’s products.

They produce and distribute these units worldwide, focusing on patented compression methods and structures. GX offers a variety of compressors, from ultra-portable 12V units to more powerful, larger models. Designed for both air rifles and paintball tanks, you can also fill small diving cylinders with some models. Meanwhile, the larger models can fill large cylinders with ease.

Most units operate either via a 12V DC car battery or a 110V/220V AC wall outlet using a converter. With this array of models, you can focus on high end features, or go for the most affordable. Either way, you get great quality and durable products. Some features worth mentioning are automatic shut-off when reaching set pressure and, on some models, a 30-minute auto-shutdown to prevent overheating. Depending on the model, they use built-in fans (oil-free/water-free in smaller models) or combined water/fan cooling for continuous operation. The E-5K2, their top tier compressor in 2025, is highlighted for being built “like a tank” for high-volume use, like filling larger cylinders.

Capable of reaching pressures between 30MPa/300Bar (4500 PSI) to 400 BAR (5800 PSI), with some GX Pump models designed for faster, more efficient filling compared to competitors.