Description

.308 80% Lower – Billet

If you are building a precision rifle or a heavy-hitting battle rifle, the lower receiver is the foundation of your build. Our .308 80% lower – billet is machined from 7075-T6 aluminum and designed for builders who want a true large-frame platform without the paperwork. This is not a polymer placeholder or a cast part. It is a billet component that gives you the rigidity and alignment needed for a reliable .308 AR pattern build. Whether you are assembling a hunting rig or a long-range target gun, this lower is ready for your jig and your tool kit.

Overview

This .308 80% lower – billet is exactly what the name implies: an unfinished lower receiver for the LR-308 / DPMS pattern. It is not a complete receiver. It requires you to complete the fire control pocket, trigger pin holes, and selector detent channel yourself. The billet construction means this lower is cut from a solid block of aluminum, not forged or sintered. That gives you tighter tolerances and a cleaner finish out of the bag. The anodized black coating is consistent and ready for cerakote if you want to color match your upper later. This is a straightforward, no-nonsense part for someone who knows their way around a drill press and a router.

Features & Specs

• Material: 7075-T6 aluminum billet, mil-spec hard coat anodized inside and out for corrosion resistance and dimensional stability.
• Pattern: DPMS LR-308 compatible. Works with standard large-frame AR parts kits, buffer tubes, and buttstocks.
• Machining: Precision wire EDM cut fire control pocket. No rough edges, no burs, and no excess material in the trigger well.

• Hardware: Includes rear takedown pin detent and spring. All other parts must be sourced separately.
• Markings: Clean, low-profile billet styling. No roll marks on the magazine well or flanks. Engraving area available on the left side of the mag well if you need to serialize later.
• Weight: Approximately 11.2 ounces. Light enough for a hunting build, stout enough for a DMR platform.

This .308 80% lower – billet is designed for the home builder who values precision over convenience. It is not a 5.56 lower stretched to fit. The magazine well is properly dimensioned for DPMS pattern .308 magazines, and the trigger pocket depth matches large-frame specifications exactly. You will not need to shim or modify the lower to accept a standard LPK. It is ready to finish out of the box.

Who It’s For

This lower is for the hands-on builder who wants to complete a .308 AR without a background check or FFL transfer. It is for the shooter who already owns a jig and end mill or router setup. It is for the guy who knows the difference between a 308 and a 762×51 and wants a receiver that matches his barrel and bolt headspace correctly. If you have built an AR-15 lower before, the process is the same here, just scaled up. If you are new to 80% builds, take your time with the jig setup and go slow on the trigger pocket. This billet lower will reward careful work with a tight, accurate rifle.

Shipping & FFL

Because this is an unfinished 80% lower receiver, it is not considered a firearm by the ATF. It ships directly to your door with no FFL transfer required. No background check, no waiting period, no dealer fees. You must be 18 or older to purchase. We ship within one business day via USPS Priority Mail or UPS Ground. International shipping is not available. It is your responsibility to verify that 80% lowers are legal in your state and local jurisdiction. Some states and municipalities restrict or prohibit the possession of unfinished receivers. By purchasing this .308 80% lower – billet, you acknowledge that you are in compliance with all applicable laws and that you will complete the receiver in accordance with federal regulations. No returns on machined parts. If the item arrives damaged, contact us within 48 hours.