Description

Forged Fire/Safe Marked 80% Lower Assembly

Precision-machined from high-strength 7075-T6 aluminum billet, this forged fire/safe marked 80% lower assembly delivers the foundational geometry required for a custom AR-15 platform build. The forging process aligns the grain structure of the metal along the receiver’s stress points, producing a component with superior tensile strength and impact resistance compared to billet-cut alternatives. Each unit is marked with clear, laser-etched fire and safe selector indicators, ensuring compliance with standard lower receiver marking protocols. Designed for the builder who demands exacting tolerances and a clean, unblemished surface for anodizing or cerakote finishing.

Overview

This forged fire/safe marked 80% lower assembly represents a critical starting point for any AR-15 builder seeking to complete a receiver from an unfinished state. The 80% lower is precision-forged to MIL-SPEC dimensions, requiring the end user to complete the final machining of the trigger pocket, hammer pin holes, and selector detent channel. The forging process itself reduces porosity and internal voids, resulting in a receiver that meets or exceeds the material requirements of mil-spec Type III hard coat anodized lowers. The fire/safe markings are deeply engraved and positioned per standard AR-15 layout, providing clear visual reference points for the selector lever once assembly is complete.

Features & Specs

• Material: 7075-T6 aluminum forging, heat-treated to T6 temper for maximum yield strength and fatigue resistance; mil-spec hard coat anodized finish ready for secondary surface treatment
• Markings: Laser-etched “FIRE” and “SAFE” selector indicators on both sides of the receiver; includes serial number placement area and manufacturer roll mark space on the magazine well
• Machining Tolerances: Pocket dimensions within +/- 0.002 inches; pin hole locations indexed to standard jig templates with 0.125-inch pilot hole for easy drilling and reaming

• Compatibility: Direct fit for all mil-spec AR-15 upper receivers, buffer tubes, and lower parts kits; accepts standard AR-15 fire control groups, pistol grips, and stock assemblies
• Surface Condition: Raw, unanodized forging ready for finishing; free of machining oil, scale, or surface oxidation; consistent 63 RMS surface finish across all external surfaces
• Included Components: One forged 80% lower receiver with fire/safe markings; no trigger, hammer, or selector components included (these must be sourced separately for final assembly)

Who It’s For

This forged fire/safe marked 80% lower assembly is engineered for the experienced firearms builder who owns or has access to a drill press, router jig, and precision measuring tools. It is intended for individuals legally permitted to manufacture a firearm for personal use under federal law. The component is suited for gunsmiths, hobbyists, and custom builders who require a forging-grade lower that accepts standard jig templates for pocket and pin hole completion. It is not recommended for first-time builders without prior experience in 80% lower finishing, as the final machining steps require attention to depth, alignment, and deburring to ensure reliable function with a standard fire control group. This lower is also suitable for builders planning to apply a custom cerakote, DuraCoat, or anodized finish after machining is complete.

Shipping & FFL

This forged fire/safe marked 80% lower assembly is not classified as a firearm by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) and may be shipped directly to your residential or business address without transfer through a Federal Firearms Licensee (FFL). No background check is required for purchase. However, the end user is solely responsible for ensuring compliance with all federal, state, and local laws regarding the completion and possession of a firearm from an unfinished lower receiver. Some states and municipalities impose restrictions on the ownership, transfer, or finishing of 80% lower receivers. It is your responsibility to verify that such possession and finishing are lawful in your jurisdiction before placing an order. We do not provide legal advice, and we recommend consulting with a licensed attorney if you have questions about applicable laws. By purchasing this product, you confirm that you are legally eligible to own and complete a firearm in your location.