Premium 80% Lower Fire/Safe Marked – Billet
If you are ready to start your next build with a solid foundation, the Premium 80% lower fire/safe marked – billet is the part you want in your hands. Milled from a single block of 7075-T6 aluminum, this lower gives you the clean lines and tight tolerances that billet machining provides. The fire/safe markings are laser-etched and deeply filled, so they stay legible through years of range time. Whether you are a first-time builder or a seasoned hobbyist, this lower offers the right mix of quality and simplicity.
Overview
This is a billet 80% lower receiver with clearly marked fire and safe selector positions. The “80%” designation means it is not yet a firearm; you will need to complete the pocket and trigger area yourself. The billet construction sets it apart from forged receivers because it starts as a solid block of aluminum, not a stamped blank. That process gives you sharper edges, a more symmetrical profile, and a finish that takes anodizing evenly. The Premium 80% lower fire/safe marked – billet is ready for your jig and your preferred finishing method.
Features & Specs
- Material: 7075-T6 aluminum billet – heat-treated and stress-relieved for durability without excess weight.
- Markings: Laser-etched fire/safe selector indicators on both sides, white filled for high contrast.
- Compatibility: Standard mil-spec lower parts kit, buffer tube, and stock interface.
- Finish: Type III hard coat anodized in black per MIL-A-8625.
- Machining: Full CNC billet cut with a clean trigger pocket and rear takedown pin detent channel.
The premium 80% lower fire/safe marked – billet also includes a flared magazine well for faster reloads and a threaded bolt catch pin for easy installation. All holes are pre-drilled and tapped to spec, so you only need to complete the fire control cavity and trigger slot.
Who It’s For
This lower is for builders who want a crisp, finished look without waiting for a serialized receiver. It suits the hobbyist who enjoys the hands-on process of finishing a lower at home. It also works well for someone who wants a spare receiver in the safe for a future project. The Premium 80% lower fire/safe marked – billet is not for someone looking for an engraved rollmark or a stripped, serialized unit. It is for the person who values billet precision and wants to handle the final machining steps themselves.
- Home builders with a router or drill press jig.
- Shooters who prefer billet aesthetics over forged texture.
- Anyone who wants a clean, unmarked lower that still has functional selector indicators.
Shipping & FFL
Because this is an 80% lower receiver, it is not classified as a firearm under federal law. It ships directly to your door with no FFL transfer required. No background check, no dealer wait time. However, you must comply with all local, state, and federal laws regarding the finishing and possession of unserialized receivers. Some states and municipalities restrict or require serialization of 80% lowers. It is your responsibility to verify that you are legally allowed to purchase and complete this product in your area. We do not ship to jurisdictions where 80% lowers are prohibited. If you have questions about your state’s laws, consult a local attorney before ordering.
- Ships via UPS or FedEx ground with adult signature required.
- No FFL needed for purchase or delivery.
- Returns accepted within 30 days on unmodified, undrilled lowers.
Every Premium 80% lower fire/safe marked – billet is inspected before shipping. If you are ready to build, this is a solid billet option that gives you clear markings and a clean machining path.





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