Premium 80% Lower Fire/Safe Marked – Billet

Build your next custom rifle platform with the precision-engineered Premium 80% Lower Fire/Safe Marked – Billet. Machined from a solid billet of 7075-T6 aluminum, this component delivers the structural integrity and exacting tolerances required for a high-performance build. The lower is designed for the serious builder who values both accuracy and compliance. With its clearly marked fire/safe selector engravings, this premium 80% lower fire/safe marked – billet provides intuitive safety engagement without ambiguity. Each unit is crafted to meet the demands of experienced gunsmiths and first-time builders alike, offering a robust foundation for a fully personalized firearm.

Overview

The Premium 80% Lower Fire/Safe Marked – Billet is a raw, unfinished component that requires final machining to complete. Manufactured from a single block of billet 7075-T6 aluminum, it exceeds MIL-SPEC hardness standards while remaining lightweight. The fire/safe markings are laser-etched at precisely 90-degree and 270-degree positions for clear visual reference during operation. This billet lower is compatible with standard AR-15 upper receivers, trigger groups, and buffer tube assemblies, making it a versatile starting point for any build. As a non-firearm component, it can be shipped directly to your door without FFL transfer, though local laws must always be verified.

Features & Specs

• Material: 7075-T6 billet aluminum, hard coat anodized to MIL-A-8625 Type III Class 2 specifications for superior wear resistance and corrosion protection.
• Markings: Laser-engraved “FIRE” and “SAFE” indicators with raised, serrated selector detent pocket for positive tactile feedback. Includes T-marks on receiver end for optic mounting precision.
• Dimensions: Standard AR-15 mil-spec dimensions with reinforced front pivot pin lugs and a flared magazine well for easier reloading. Accepts all drop-in trigger groups and standard buffer tubes.

This premium 80% lower fire/safe marked – billet features a precision-machined trigger pocket with square-cut corners for aftermarket trigger compatibility. The rear takedown pin detent is pre-drilled and tapped for set screw retention, eliminating the need for a standard detent spring and pin. Each unit is individually inspected for dimensional accuracy using CMM verification. The fire/safe markings are deeply engraved and filled with white enamel for high contrast, ensuring readability even in low-light conditions.

Who It’s For

This product is designed for experienced DIY builders, gunsmiths, and hobbyists who require a high-quality foundation for a custom AR-15 platform. The Premium 80% Lower Fire/Safe Marked – Billet is ideal for those comfortable with completing the remaining machining operations, including drilling the trigger and hammer pin holes, and milling the fire control pocket. It is not intended for individuals unfamiliar with firearm machining or those seeking a complete, ready-to-assemble lower receiver. Builders who prioritize material quality, precise engravings, and a clean billet aesthetic will find this component meets exacting standards. It is also suitable for custom cerakote or anodize finishing due to the raw aluminum surface.

Shipping & FFL

This product is classified as a non-firearm component under federal law as it is not yet in a functional state. Therefore, it ships directly to your residential or commercial address without requiring an FFL transfer. No background check is needed for purchase. However, the buyer assumes full responsibility for verifying all local, state, and federal laws regarding the completion and ownership of a firearm manufactured from this 80% lower. Some jurisdictions restrict or prohibit the possession or finishing of 80% lowers. By purchasing, you acknowledge that you are legally permitted to own and complete this component in your area. Standard shipping rates apply. Returns are accepted only for manufacturing defects; no returns on modified units.