SDI Firearms Inspection and Troubleshooting Practice Exam 2026 - Free Firearms Inspection Practice Questions and Study Guide

The assertion that older single-action firearms typically have more parts than newer designs is false. Newer firearm designs often incorporate advancements in manufacturing and technology that enable simplified mechanisms and fewer components. Over time, firearms engineering has focused on streamlining designs to improve reliability, reduce weight, and enhance ease of use.

Older firearms, particularly single-action revolvers and similar designs from earlier eras, frequently had more intricate mechanical systems. These could include additional springs, levers, and other parts that contributed to their operation. In contrast, many modern firearms benefit from innovations such as integrated components, reduced machining processes, and the use of polymers and advanced materials, which can significantly cut down on the number of moving parts required for reliable function.

The trend has been towards functional simplicity and ease of maintenance in newer firearms, which is why the statement is not accurate.