Grease will dry out and become crud, even in storage. IMO not a darn thing wrong with a "dry gun". Guns are designed to be dry. They're not a car engine -high speed combustion and constantly moving, hot high speed parts, rubbing against each other. The ONLY guns that might need a lttile oil are the pros who run hundreds of rounds every day at a high rate of speed, but even then, cleaning the gun is FAR better for it than oil and grease. No need for lube. In fact, NEVER oil the striker, firing pin, chamber or trigger assy, so what does that leave? Most folks (wrongly) reason is that parts that rub together need oil, but that's just not true. Gun parts are hardened and coated and designed to rub together. REALLY, all oil does is attract dust and dirt and crud and that and carbon (and copper) build up are the REAL enemies of guns. Grease does it more and faster. Nope, not really necesssary. A good thorough cleaning (mineral spirits or paint thinner or denatured alcohol is fine, on metal. Soap and water on plastic) (of ALL parts) is FAR more necessary."I oil and use grease. ... Will it gum up...- but it's a home defense weapon that will probably fire less than 10 rounds if needed. Better than a weapon heavily oiled and ran dry because the oil seeped out or ran to one end of the weapon."