Premium Fire/Safe Marked Billet 80% Lower Assembly

If you are looking for a solid foundation for your next build, the premium fire/safe marked billet 80% lower assembly is a component that deserves a close look. machined from a single block of 7075-T6 aluminum, this lower offers the rigidity and precision that billet machining is known for. The fire/safe markings are laser-engraved and deeply set, providing clear, lasting reference points for your selector positions. This is a part that feels substantial in the hand, with a clean, uninterrupted surface finish that avoids the casting lines found on forged receivers.

Overview

This assembly is a raw 80% lower, meaning the critical fire control pocket is not yet fully machined. It gives you the flexibility to complete the receiver at home using a jig and a router or drill press. The receiver is marked with both “FIRE” and “SAFE” positions, matching standard AR-15 selector configurations. Because it is a billet piece, the geometry is crisp, and the magazine well is slightly flared for easier reloads. It is a straightforward part for someone who wants a custom build without starting from a fully finished receiver.

Features & Specs

• Precision-machined from 7075-T6 aluminum billet stock for high strength and consistent wall thickness
• Laser-engraved fire/safe markings that remain legible through multiple finishes and cerakote applications
• Integral trigger guard machined as part of the lower body, eliminating a separate pin and reducing potential rattle
• Compatible with standard AR-15 lower parts kits and buffer tube assemblies
• Anodized to MIL-SPEC Type III Class 2 hard coat for corrosion resistance

Who It’s For

This lower is intended for the hobbyist builder who wants to finish the receiver themselves. If you have experience with a drill press or router and a jig system, this is a natural next step. It is also a good choice for someone who wants to avoid a forged receiver and prefers the aesthetic of a billet part with the distinct fire/safe markings. This is not for a first-time builder who has never handled an 80% lower before, but if you have the tools and patience, it is a rewarding project. The premium fire/safe marked billet 80% lower assembly works well for a dedicated rifle or a pistol build, depending on how you finish the pocket and what parts you install.

• Ideal for experienced home builders with a jig and finishing tools
• Suitable for both rifle and pistol configurations after completion
• Works with standard AR-15 lower components and buffer systems

Shipping & FFL

Because this is an 80% lower receiver and not a finished firearm frame, it does not require transfer through a Federal Firearms License (FFL) dealer for shipment within the United States. It ships directly to your doorstep. However, please check your local and state laws before ordering. Some states and municipalities restrict the possession or finishing of 80% receivers. You are responsible for complying with all applicable laws. Once you complete the machining, the part becomes a firearm receiver and must be treated as such under federal law. No FFL transfer is required for this raw component, but we recommend verifying your local regulations before purchase.

• Ships directly to your residence without an FFL transfer fee
• Buyer must comply with state and local laws regarding 80% receivers
• Once finished, the lower must be serialized if required by your state