GX Pump
GX Pump CS1-I
4,500 PSI max · Fan-cooled
12V120V
Compact 12V/120V unit with a built-in power transformer. Made for topping off a gun, not filling tanks.
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Roger's Champion Pick
GX Pump CS4-I
Water cooling, a built-in moisture separator, and a 5800 PSI ceiling. Together those make this the best-value serious compressor under $1,000. It covers the full range of PCP airguns on the market.
"This is the one I recommend without hesitation for most buyers."Roger SeherRead the Review
Compressors We're Tracking
See All → GX Pump
GX Pump CS2
4,500 PSI max · Fan-cooled
12V120V
Entry-level fan-cooled CS series unit. Compact, portable, occasional use.
GX Pump
GX Pump CS3
4,500 PSI max · Fan-cooled
12V120V
Base fan-cooled CS3. Decent for light use with a good external filter.
GX Pump
GX Pump CS3-I
4,500 PSI max · Fan-cooled
12V120V
Fan-cooled CS3 with a built-in moisture separator.
GX Pump
GX Pump L2
4,500 PSI max · Fan-cooled
120V
Entry-level L series. Budget option for one gun, filled infrequently.
GX Pump
GX Pump L3
4,500 PSI max · Fan-cooled
120V
Larger L series fan-cooled unit. Light and portable.
Owner reviews, not Amazon reviews.
Amazon stars don't tell you what happens after the first 50 fills. We ask the people who own these machines what they fill, how long it takes, and what broke. Every review is read and approved by a real person. No paid reviews. No free-product reviews.