Tenacity Firearms is an American rifle brand focused on precision, performance, and durable craftsmanship. The company builds production rifles using components from established manufacturers, including Defiance Machine, McMillan, Proof Research, Hells Canyon Armory, and Triggertech. Its rifles are designed for hunting, shooting sports, and military applications, with an emphasis on accuracy and reliability across demanding conditions.

The Tenacity rifle is built around a customized Defiance Renegade action, offered in short, medium, and long configurations. It combines a nitrided action with a carbon barrel from Proof Research or Hells Canyon Armory, a 20 MOA Picatinny rail, and a McMillan Game Warden 2.0 stock. The Tenacity X uses a Defiance AnTi-X action and features a McMillan Mountain Tracker stock, a carbon barrel, and a Triggertech Primary trigger.

Tenacity Firearms also sells barreled actions, accessories, ammunition, optics, and scopes. Its online store features products such as bipods and a Garmin chronograph. The brand presents its rifles as precision-focused platforms that support American manufacturing and are built for lasting use.