About us

Big Kahuna Industries was founded to continue and enhance the proud legacy of the Ligamec Raptor 50 — a proven, precision-engineered .50 BMG upper designed for AR-15 lower receivers. Our mission is simple: to provide American shooters with the most reliable, accurate, and durable .50 BMG upper receiver on the market.

Our flagship product, the Raptor 50, is the evolution of the iconic Ultralight 50, which began turning heads in the shooting community as early as 2005. While honoring the original design, we’ve made key improvements in both materials and manufacturing processes to ensure superior performance, safety, and longevity.

At Big Kahuna, quality and craftsmanship are non-negotiable. That’s why we source only the highest-quality components, including Lothar-Walther barrel blanks made specifically to our specifications. Every Raptor 50 barrel is cut for performance, accuracy, and repeatability.

Unlike many brands that outsource manufacturing overseas, we machine every major component in-house right here in the USA. From our precision bolt carriers to our custom receivers, we maintain full control over the production process. This ensures tight tolerances, better quality assurance, and faster innovation.

Whether you’re a competitive long-range shooter, a collector, or just a fan of large-caliber firearms, you can count on Big Kahuna Industries for exceptional .50 BMG uppers, cutting-edge AR-15 accessories, and unmatched customer service.

We are proud to serve enthusiasts across the United States and its territories, and we’re constantly working to bring innovation and performance to the next level.

Big Kahuna Guns — Home of the Raptor 50. Built for Power. Engineered for Precision.