The best-selling style grease gun on the market, the LubeGear Heavy-Duty Pistol Grip Grease Gun is the perfect mix of performance and style. It delivers up to 5,000 psi for heavy applications. The LubeGear Pistol Grease Gun can be bulk-loaded, pump-loaded or cartridge-loaded for added flexibility and includes an air bleeder valve for priming. As with every LubeGear product, the Heavy-Duty Pistol Grip Grease Gun is built with high-quality materials and designed with best-in-class utility and ergonomics. The result is a sturdy grease gun that's easy to load, easy to prime and easy to use. The LubeGear Heavy-Duty Pistol Grip Grease Gun makes equipment maintenance fast and easy. It's the last grease gun you'll ever own.