80 Lower Fire Safe Marked Raw
About this product
An 80% lower (also called an unfinished receiver or receiver blank) is a partially machined AR-pattern lower that has not been drilled or milled to a functional state — it isn't a firearm under the traditional legal definition until the fire-control cavity and pin holes are finished. This one is sold "raw," meaning it has no anodizing or coating, just bare machined aluminum, and it carries the standard laser-engraved "FIRE" and "SAFE" selector markings that match a normal AR lower's layout. It's a hobbyist/gunsmithing item, not a ready-to-shoot part.
What is it used for?
Traditionally, 80% lowers were bought by hobbyists who wanted to machine the remaining material themselves, using a jig and a drill press or mill, to finish a receiver for a personal AR build. The "raw" finish means the buyer would typically coat or anodize it themselves after machining, since bare aluminum isn't corrosion-protected long-term.
Does it work in California?
This is the part to read before anything else. California law (AB 857, in effect since 2019) requires anyone who completes a receiver into a working firearm to first apply to the California DOJ for a serial number and engrave it on the part before it can legally be finished, and it bars completing one for anyone other than personal use. Separately, AB 1621 (effective July 1, 2024) restricts the sale of unserialized firearm precursor parts in California to licensed firearm manufacturers only — meaning retail sale of a raw, unserialized blank like this one to the general public is no longer permitted under state law. Check current availability and legal status with our shop directly, and see our California gun laws page before assuming this item can be purchased or completed in-state.
What fits it?
Because no brand or model number is confirmed for this specific blank, we can't guarantee jig or parts-kit compatibility. Standard AR lower parts kits are designed around mil-spec dimensions, so a mil-spec-pattern blank generally accepts standard fire control groups, but buyers should confirm dimensions against their specific jig before ordering one.
Who is this not for?
It's not for anyone looking for a complete, ready-to-transfer firearm — this is raw material, not a finished gun, and federal and state rules around finishing one are strict and change over time. It's also not the right item for a first-time builder who isn't comfortable researching current law before starting, given how much the legal landscape around unserialized receivers has shifted in the last few years.
Is it legal to own?
Owning an unfinished blank that has not been machined into a functional receiver is treated differently than owning a completed, unserialized firearm — but the rules on purchasing, serializing, and finishing one are specific and have changed multiple times since 2018. Don't rely on older information you've seen online; confirm current status before buying.
For a complete rundown of what's required to legally build or own a firearm in this state, see our California gun laws page, or ask us directly before ordering.
Pros & cons
What works
- Standard mil-spec-style selector markings pre-engraved
- Raw finish, ready for the buyer's own coating
- Simple, no-frills blank for hobbyist projects
Trade-offs
- No brand or manufacturer confirmed for this listing
- California law tightly restricts retail sale and completion of unserialized blanks
- No jig or parts kit included
- Not a functional part out of the box
Key attributes
| Type | 80% lower receiver blank |
| Finish | Raw, unanodized |
| Markings | Fire / Safe selector markings |
| Completion Status | Unfinished — not machine-complete |
Frequently asked questions
- Is this a firearm?
- As a raw, unfinished blank it is not machined to a functional state, so it does not meet the traditional legal definition of a firearm — but recent federal and California rules have narrowed what counts as "unfinished" for that purpose, so confirm current status before buying.
- Can I buy this and finish it myself in California?
- California's AB 857 requires DOJ serialization before completion, and AB 1621 (2024) restricts sale of unserialized blanks to licensed manufacturers. Ask us about current legal availability before ordering.
- Does it come with a jig or tooling?
- No, this listing is the raw blank only — no jig, bits, or parts kit are included.
- What material is it made from?
- It's described as a raw aluminum blank with no anodizing or coating applied.
- Why does it show "Fire" and "Safe" markings if it's unfinished?
- Manufacturers often laser-engrave the standard selector markings during the initial forging or machining stage, before the fire-control cavity itself is finished.