What is a best practice for firearm upkeep regarding lubrication?

Using minimal lubricant and cleaning before use is considered a best practice for firearm upkeep because it minimizes the buildup of dirt and debris that can attract contaminants and affect the functionality of the firearm. A thin application of lubricant ensures that critical moving parts are protected without excessive oil that can impede function or cause malfunction. Cleaning before use is important as it removes any potential obstructions or residues from previous handling or storage, thereby ensuring optimal performance during operation.

The other options advocate practices that can negatively impact the reliability and longevity of the firearm. Excess lubrication can attract dust and debris, leading to jams and malfunctions. Lubricating after every use without assessing the condition of the firearm may lead to unnecessary buildup, especially if the firearm was already clean and dry after the previous use. A thick coat of oil for long-term storage can lead to issues because it can become gummy over time, potentially causing parts to stick and degrade the operational integrity when the firearm is eventually put back into use.