The Umarex ReadyAir 4500PSI Gen 2 Compressor is a powerful, compact, and efficient solution for PCP airgun users who need fast and reliable high-pressure fills. With a max output of 4,500 PSI, this oil-free, programmable compressor is built for performance whether you're at home or out in the field. Thanks to its dual power input (12v DC or 110v AC) and integrated auto shut-off system, this second-generation unit offers versatility, safety, and ease of use—all in a lighter, smaller footprint than its predecessor.

Buy compatible PCP Air Rifles: UMX2252157, UMX2252158

Why choose this compressor?

• Dual Power Source: Runs on 110V AC wall power or 12V DC vehicle battery—perfect for home or field use.
• Fast Filling: Fills a 24 CI tank from empty to 4500 PSI in just 18 minutes.
• Programmable Digital Cut-Off: Set your desired pressure and let the compressor do the work with automatic shut-off.
• Improved Portability: Gen 2 model is lighter, more compact, and easier to carry and store.
• Automatic Heat Protection: Built-in safety features help protect the unit from overheating.
• Integrated Air Dryer: Moisture filter on the fill hose protects your equipment from water damage.
• Oil-Free Operation: Low-maintenance design means fewer service needs and cleaner performance.

Why not?

• Limited Tank Size Use: Best for small to mid-sized tanks—not ideal for repeatedly filling large scuba tanks.
• Battery Clamps for DC Use: Must connect directly to a vehicle battery, which may be inconvenient in some field scenarios.
• Noise Output: Like most compressors, it’s not silent—use hearing protection during long fills.

Pro Tip: For optimal compressor life, allow cool-down periods between heavy fills and always use the integrated moisture filter. If you're filling multiple tanks regularly, invest in a pressure-rated inline moisture filter for even more protection.