At WeaponHaus, our A1/A5 hybrid architecture of our lowers is the result of a focused research and development process, informed by industry consultation and platform analysis. By selectively integrating the strongest design characteristics of both generations and eliminating their limitations, we have engineered a refined 416-spec receiver that sets a new benchmark in precision, functionality, and platform fidelity.

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Designed with obsessive attention to detail, the Haus416 Lower is a billet-machined receiver modeled directly from genuine HK 416 lowers. Countless hours of laser scanning, CMM inspection, and CAD optimization were used to replicate HK’s forged geometry with exacting precision, including all critical alignment surfaces.