The Premium Fire/Safe Marked Billet 80% Lower Assembly comes complete with essential parts as described: Premium Fire/Safe Marked Billet 80% Lower Assembly This premium fire/safe marked billet 80% lower assembly is a precision-machined component designed for builders who require a clean, unmarked base that is ready for final finishing. Manufactured from solid 7075-T6 aluminum billet, this lower assembly provides the dimensional accuracy and material integrity needed for a reliable build. The fire/safe markings are laser-engraved after anodizing, ensuring permanent legibility without compromising the anodized surface. This assembly is intended for use by individuals who will complete the machining process to create a functional firearm receiver in compliance with all applicable laws. Overview The premium fire/safe marked billet 80% lower assembly is a fully un-machined lower receiver that has not been drilled for the trigger pin, hammer pin, or fire control group pocket. It is serial-number-free and requires the end user to perform the final material removal steps to bring it to a functional state. This product is manufactured to mil-spec dimensions but offers the enhanced strength and reduced weight of billet construction versus forged receivers. The fire/safe markings are positioned at the standard selector switch locations, allowing for clear, factory-style indication of your fire control settings once the build is complete. Features & Specs Material & Construction: Machined from solid 7075-T6 aluminum billet for superior grain structure and impact resistance. Hard coat anodized per MIL-A-8625 Type III for corrosion resistance and durability. Markings & Finish: Laser-engraved fire/safe markings in white fill. Matte black anodized finish with a uniform, non-reflective surface. Markings are permanent and will not wear off under normal use. Specifications: Dimensions meet mil-spec standards for compatibility with standard AR-15 upper receivers, buffer tubes, and grips. Wall thickness is consistent throughout the pocket areas. Weight: 0.65 pounds. Machining Required: End user must complete the trigger pocket, hammer pin hole, trigger pin hole, and safety selector hole. No part of the fire control group cavity is pre-machined. This premium fire/safe marked billet 80% lower assembly is an excellent choice for builders who prioritize precision and a clean, professional appearance. The billet construction eliminates the seam lines typical of forged receivers and provides a more consistent material density. Who It’s For This product is intended for experienced firearm builders who have the necessary tools and knowledge to complete the machining process safely and accurately. It is not a drop-in component. You should purchase this premium fire/safe marked billet 80% lower assembly if you are comfortable with using a drill press, jig, and end mill to finish the fire control pocket and pin holes. This lower is ideal for custom builds where you want a receiver that has not been pre-marked by a manufacturer, allowing you to engrave your own serial number or markings as permitted by law. It is also suited for builders who prefer the aesthetics and structural benefits of a billet receiver over a forged unit. Shipping & FFL This product is classified as an 80% lower receiver and is not considered a firearm by the ATF. It may be shipped directly to your residence or business without requiring an FFL transfer. No background check is necessary at the time of purchase. However, once you complete the machining process to create a functional firearm, you are legally required to comply with all federal, state, and local laws regarding firearm possession and serialization. It is your responsibility to verify that the completion of this lower assembly is legal in your jurisdiction before ordering. We recommend consulting with a firearms attorney if you have any questions regarding your legal obligations. We ship within 1-2 business days via UPS Ground or USPS Priority Mail. This premium fire/safe marked billet 80% lower assembly is backed by our satisfaction guarantee against manufacturing defects.

No. This product is a part or accessory and does not require an FFL for purchase or shipping.

While Premium Fire/Safe Marked Billet 80% Lower Assembly is legal in most states, always verify your local laws before placing an order. We comply with all state regulations.

In most cases, yes — Glock-compatible frames are designed to accept Glock OEM and compatible magazines. Always confirm fitment in the product details.

That depends on your state’s concealed carry laws. Once properly serialized and registered, carrying may be allowed under state law.

We ship all over the USA within 1–3 business days. You will receive tracking once shipped. Delivery times vary by carrier and region.