Griffin Armament MK2AL MK2 Stripped Lower Receiver 7075-T6 Aluminum Black Anodized for AR-15

The Griffin Armament MK2AL MK2 Stripped Lower Receiver in 7075-T6 aluminum with black anodized finish is a precision-machined foundation for AR-15 rifle builds. Manufactured to exact tolerances from aerospace-grade aluminum, this stripped lower provides the structural backbone for custom rifle assembly. The MK2AL is engineered as a complete lower platform, designed to accept standard mil-spec components and deliver proper fitment without rework or hand-fitting during assembly.

7075-T6 aluminum offers superior hardness and strength compared to standard 6061-T6, critical for a lower receiver that must withstand repeated firing cycles and maintain dimensional stability. The hardcoat type 3 anodizing applied to this MK2 lower provides robust resistance to surface wear, scuffs, and scratches—essential when working with cleaning solvents, oils, and field handling. At 0.86 lbs, the finished lower keeps overall rifle weight manageable while maintaining structural integrity. The MK2AL's ambidextrous magazine release enhances operational flexibility for both right- and left-handed shooters, a practical feature in professional and training environments where operator preference varies.

This stripped lower is ideal for custom AR-15 builders who demand precision-grade components for duty rifles, range carbines, or precision builds. Military and law enforcement armors, gunsmiths, and serious shooters select Griffin Armament lowers when starting a build that requires exceptional tolerances and surface durability. The MK2AL removes guesswork from the foundation stage, allowing builders to focus quality on upper receiver selection and trigger group configuration without concern about lower-receiver fit issues.

Stripped lowers require completion with a fire control group (trigger assembly, hammer, disconnector) and other components to function; verify all local and federal regulations before assembly. The MK2AL is sold as a bare receiver and ships with no ammunition, accessories, or pre-installed components.