What is a key aspect of weapon maintenance?

A key aspect of weapon maintenance is conducting regular inspections and performing necessary repairs. This practice is essential to ensure that the weapon functions reliably and safely. Regular inspections allow personnel to identify any wear, rust, or potential mechanical issues before they lead to malfunctions during use. Addressing these issues proactively through repairs helps maintain the weapon's operational integrity and extends its service life, ensuring that it remains effective when needed.

Other options such as using high-powered solvents for cleaning, limiting usage to trained personnel, and modifying parts can play roles in the overall handling and care of firearms but do not encompass the broader and vital maintenance aspect as thoroughly as regular inspections and necessary repairs do.