Defiance Machine, Inc.
Defense and Space ManufacturingMontana, United States11-50 Employees
Defiance Machine, Inc. is a defense and space manufacturing company based in Columbia Falls, Montana. It holds ATF designation as a Class 7 manufacturer and focuses on the design and production of custom bolt-action rifle receivers, serving rifle builders, resellers, and individual shooters. The firm emphasizes extreme accuracy and tight tolerances, offering broad customization, including client-branded variants, and manufactures most action components in-house to support production-speed requirements. The company serves a wide rifle community including hunting, military and law enforcement, and competitive shooting audiences, with actions recognized for precision at the highest levels of national and international competitions. It is pursuing growth beyond domestic markets by expanding its international distributor network. In early 2025, Defiance introduced its Deviant Controlled Round Feed action, reflecting ongoing product development aligned with its design and manufacturing capabilities.