A lower and upper set is the matched starting point for a build: an 80% lower receiver paired with an upper receiver in the same finish. The lower ships as an 80% (unfinished) receiver, so you finish it yourself, then build out from there — these sets don’t include a barrel, bolt carrier group, parts kit, or stock.

Daytona Tactical stocks sets for both AR-15 and AR-10/.308 builds, in black, mill/raw finish, and a range of Cerakote colors. Use the filters to sort by platform, finish, and color.

Lower and Upper Sets

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Choosing a Lower and Upper Set

Buying the lower and upper together keeps the finish matched and the cost down versus sourcing them separately. Here's what to weigh.

 What's in the set

Each set is two pieces: an 80% lower receiver (unfinished) and a matching upper receiver. That's the foundation — you supply the rest of the build (barrel, bolt carrier group, charging handle, lower parts kit, handguard, and stock). The lower is an 80% receiver, so you'll finish it before assembly.

 AR-15 vs. AR-10 / .308

Most sets are AR-15. We also stock AR-10 / .308 sets for large-frame builds. AR-15 and AR-10 receivers are different sizes and aren't interchangeable, and large-frame patterns differ — match the set to your platform and check the .308 product page for pattern compatibility before sourcing an upper's internals.

Stripped vs. complete stripped upper

A stripped upper is a bare upper receiver. A complete stripped upper is an upper receiver with the forward assist and ejection-port (dust) cover already installed — but still no bolt carrier group or charging handle. Check the product title and description for which one a given set includes.

Finish options

Sets come in black anodized, a mill/raw finish, and Cerakote colors — Flat Dark Earth (FDE), OD Green, Tungsten Grey, Burnt Bronze, Titanium Blue, Pink, Purple, and Zombie Green. Because the lower and upper are finished together, the color matches across both pieces. Confirm the exact finish on each product page.

Building it out

Once your lower is finished, add the rest: pair the set with an 80% lower jig kit to finish the lower, a lower parts kit, and an upper build assembly for the barrel and internals.

Frequently Asked Questions

What's included in a lower and upper set?

Two pieces: an 80% (unfinished) lower receiver and a matching upper receiver. It does not include a barrel, bolt carrier group, charging handle, lower parts kit, handguard, or stock — those are added to complete the build.

Are these 80% lowers serialized?

No. An 80% lower is an unfinished receiver, so it is not serialized — that's the defining feature of an 80% lower. It is not yet a firearm and carries no serial number. If you finish it into a working firearm, check your current federal and state requirements on marking and serialization for a personally made firearm before you do.

What's the difference between a stripped and a complete stripped upper?

A stripped upper is a bare upper receiver. A complete stripped upper has the forward assist and dust cover already installed but no bolt carrier group or charging handle. Both still need a barrel, BCG, charging handle, and handguard to function.

Do AR-15 and AR-10 sets use the same parts?

No. AR-15 and AR-10/.308 are different-sized platforms with different receivers and many platform-specific parts. Build each with components made for that platform, and confirm the AR-10 set's pattern (for example, DPMS-style) before sourcing matching parts.

Do you need an FFL to buy a lower and upper set?

The set's lower is an individual 80% (unfinished) receiver, and the upper receiver is not a regulated part. At the federal level, an individual unfinished lower sold on its own — not as a kit with a jig and the parts needed to readily complete it — is generally not treated as a firearm and ships without an FFL transfer, following the 2025 U.S. Supreme Court decision Bondi v. VanDerStok. State laws on unfinished receivers vary, so confirm the current rules where you live and how a specific set ships before ordering. This page is general information, not legal advice.