Premium Fire/Safe Marked Billet 80% Lower Assembly

When you are building from the ground up, the foundation matters. This premium fire/safe marked billet 80% lower assembly gives you the clean lines of a billet receiver with the unmistakable visual feedback of engraved selector markings. Machined from 7075-T6 aluminum, this lower is designed for the builder who wants a precise, ready-to-finish platform without the hassle of trying to get crisp markings after the fact.

Overview

This is a complete 80% lower assembly that has been machined from a solid billet of aluminum, meaning you get tighter tolerances and sharper edges compared to a forged part. The fire/safe markings are engraved directly into the metal, not painted on or lasered as an afterthought. It ships unfinished, requiring you to complete the fire control pocket and trigger pin holes. If you are looking for a premium fire/safe marked billet 80% lower assembly that feels substantial in the hand, this is exactly what you need.

Features & Specs

Every detail on this premium fire/safe marked billet 80% lower assembly is intentional. From the material selection to the final finish, it is built for durability and a clean aesthetic.

• Machined from 7075-T6 aluminum billet for superior strength and reduced porosity compared to standard cast or forged lowers.
• Engraved fire/safe markings are deep, clear, and located in the standard position for easy reference with any selector switch.
• Type III hard coat anodized finish in black, providing a tough, corrosion-resistant surface that holds up to regular handling and cleaning.

This lower is compatible with standard AR-15 upper receivers and mil-spec parts kits. The billet construction means you get a slightly heavier, more rigid receiver that often requires less fitting during assembly. The fire control pocket is pre-machined to 80% depth, leaving the remaining material for you to remove with standard jigs and tooling.

Who It’s For

This premium fire/safe marked billet 80% lower assembly is built for the hands-on builder who appreciates quality machining and wants a lower that looks as good as it performs. It suits the first-time builder who wants a straightforward project with clear markings, as well as the experienced hobbyist who prefers billet for its crisp lines and tight tolerances. If you value a clean, professional appearance and want your selector markings to be visible without relying on paint or stickers, this lower is a solid choice. It is not for someone looking for a complete, ready-to-fire receiver, as it requires your time and tools to finish.

Shipping & FFL

Because this is an 80% lower receiver, it is not considered a firearm by the ATF and does not require transfer through a Federal Firearms License (FFL) dealer. It ships directly to your door. However, you are responsible for ensuring compliance with all local, state, and federal laws regarding the completion and possession of unserialized firearm components. Once you complete the machining, the finished receiver must comply with all applicable laws in your jurisdiction. We recommend checking with your local law enforcement or legal counsel before purchasing if you have any questions about legality.

• Ships directly to your residential or business address with no FFL transfer fee.
• No age verification or background check required for purchase, but you must be 18 or older to order.
• Some states and localities restrict or prohibit 80% lowers. It is your responsibility to know the laws where you live.