Premium 80% Lower Fire/Safe Marked – Billet

The premium 80% lower fire/safe marked – billet delivers the material integrity and dimensional accuracy required for a reliable build. Machined from 7075-T6 aluminum billet, this lower receiver blank is ready for finishing with a jig and router. The fire/safe markings are laser-etched to MIL-SPEC depth and alignment, providing clear, permanent selector reference points. This is a purpose-built component for the builder who demands billet-grade tolerances without compromise.

Overview

This premium 80% lower fire/safe marked – billet is manufactured from a solid block of 7075-T6 aluminum, then hard-coat anodized to Type III Class 2 for wear and corrosion resistance. The pocket is fully machined to 80% completion, leaving the trigger cavity, fire control group shelf, and selector detent channel un-machined for ATF-compliant home finishing. The fire/safe markings are laser-engraved on the receiver body, ensuring they remain visible through the finishing process and subsequent coating. This is a serial-number-free component; no FFL is required for transfer, though a background check may apply per state law.

Features & Specs

• 7075-T6 aluminum billet construction with Type III Class 2 hard-coat anodized finish for maximum durability and dimensional stability
• Laser-etched fire/safe markings at correct MIL-SPEC orientation and depth; markings survive finishing and cerakote application
• Billet-specification rail system geometry with consistent wall thickness and precision-machined takedown pin lug pockets

• Compatible with mil-spec upper receivers, lower parts kits, and buffer tube assemblies; no proprietary parts required
• Accepts standard AR-15 magazine catch, bolt catch, and selector components; fire/safe markings align with standard selector positions
• Manufactured in the United States by Premium; each unit is individually inspected for pocket depth, pin hole alignment, and marking clarity

Who It's For

The premium 80% lower fire/safe marked – billet is designed for the home builder with a jig, router, and basic tooling who expects billet-grade results. It suits the shooter who wants a dedicated lower for a specific upper build, the competitor who needs a clean, marked receiver for quick selector reference, and the collector who prefers the aesthetic and structural benefits of billet over forged material. This lower is also appropriate for the gunsmith offering finishing services, as the billet blank provides a stable platform for secondary machining. It is not intended for first-time builders without a verified jig setup, as billet requires precise fixturing to maintain alignment during pocket completion.

Shipping & FFL

This premium 80% lower fire/safe marked – billet is not a firearm and may be shipped directly to your residence or business. No Federal Firearms License (FFL) transfer is required for this item. However, some states and local jurisdictions may require a background check or impose restrictions on the purchase or possession of 80% receivers. It is your responsibility to verify and comply with all applicable federal, state, and local laws before ordering. By purchasing this product, you certify that you are not prohibited from possessing a firearm under federal law and that you will comply with all legal requirements for completing and owning a finished receiver. Standard shipping rates apply; expedited options are available at checkout. If you have questions about your state's regulations, contact your local law enforcement or legal counsel before placing an order.