Precision. Innovation. Excellence.

Founded in 1997 by brothers Allan and Dale Mack, Horizon Machine Inc. was built on a passion for precision engineering and a relentless drive for innovation. Starting with just one CNC machine in a small shop, we’ve grown into a 30,000-square-foot facility equipped with over 40 CNC machines and a dedicated team of skilled professionals.

In 2007, we launched Mack Brothers, bringing our expertise to the forefront of the firearms industry. From high-performance suppressors to precision rifle actions and fully customizable rifle builds, we are committed to delivering the highest quality products for shooting enthusiasts, hunters, and professionals alike.

Nearly 30 Years of Experience

With almost three decades in business, we’ve continually evolved to stay ahead of the industry. Our commitment to innovation has driven significant advancements in technology, automation, and precision machining.

  • Cutting-Edge Technology – We utilize the latest in CNC machining, automation, and advanced manufacturing techniques to ensure consistency, accuracy, and superior quality in every product.
  • Automation & Efficiency – By integrating automated processes, we enhance production speed while maintaining the tight tolerances demanded by precision firearms components.
  • Skilled Workforce – Our team of highly trained machinists, engineers, and craftsmen bring years of expertise to every stage of production, ensuring that our products meet the highest standards.

From Concept to Completion

At Mack Brothers, we leverage state-of-the-art design and manufacturing tools to transform ideas into reality.

  • Advanced 3D Modeling – Utilizing the latest SolidWorks software, we create detailed 3D models for customer review, product manuals, and installation instructions. This allows for a seamless transition from concept to finished product.
  • Seamless Machining Process – By generating machining code directly from solid models, we can machine complex surfaces with precision and efficiency, ensuring a smooth transition from design to production.
  • Expert Engineering Support – Whether developing a new product or optimizing an existing design, our in-house experts are available to assist at every stage. We can generate 3D computer models from scratch or work from existing data to meet our clients’ needs.
  • Investment in Excellence – We continually invest in the industry’s most advanced equipment, supporting every phase of production, from prototyping to on-time delivery.

Built for Those Who Demand the Best

Every product we create is a testament to our craftsmanship, cutting-edge technology, and unwavering attention to detail. Whether you’re a competitive shooter or a backcountry hunter, you can trust that our products are engineered for durability, accuracy, and reliability.

We take pride in our South Dakota roots and the values that have guided us from the beginning—integrity, quality, and a commitment to our customers. As we continue to push the boundaries of design and manufacturing, we remain dedicated to producing firearms components that stand the test of time.

Visit Horizon Machine’s website for a more information.