Historically, major firearms and munitions manufactures have made good functional parts, even if it has required some factory line “gunsmithing.” With the boost of engineering talent migrating over from the automotive industry, and with increased end user demand for less expensive, higher quality products, a new revolution of class A manufacturing principles has been widely adopted throughout the firearms industry. These changes mean better quality products for the end user, fewer changes after product launch and consistent production from year to year. This is important to end users and retailers alike because it means fewer returns and warranty claims, lower costs and higher margins and consistency in product quality year after year, helping to build brand loyalty.