engineering services, including general engineer turnings and precision mechanical components. Its operations combine technical engineering capabilities with dedicated barrel-making to serve customers that require high-accuracy firearms components and machined parts. Sassen Engineering focuses on producing repeatable, tightly toleranced components and barrels to meet the needs of defense, law enforcement, and competitive shooting sectors, as well as broader industrial clients that require precision machining. Prior to its liquidation, the company integrated the Border Barrels operation into its precision manufacturing activities.