Shot Show 2025 HM Defense .50 Cal Rifle, Barrel & Bolt Patent Explained
HM Defense showcases their Gen 2 .50 BMG rifle, the HM50 B2, at Shot Show 2025. This rifle features a unique 10-shot, left-bolt, right-port configuration designed for right-handed shooters to maintain position while cycling. The company also highlights two primary patents: a monoblock barrel design that integrates the gas block, eliminating alignment issues and dissimilar metals, and an enhanced bolt design that addresses common failure points in standard AR-platform bolts by modifying the cam pin hole and eliminating firing pin drag.












