Description

Polymer80 LR-308 80% Lower Receiver

When you are looking to build a custom large-frame AR platform, the polymer80 lr-308 80% lower receiver stands out as a practical foundation. This component gives you the liberty to craft a rifle that matches your exact preferences, without the full retail price tag or the need for a serialized transfer at the point of purchase. It is machined from a tough, reinforced polymer that keeps weight down while holding up to the recoil of .308 Winchester or 6.5 Creedmoor. Whether you are a first-time builder or a seasoned hobbyist, this lower offers a straightforward path to a personalized large-frame rifle.

Overview

The polymer80 lr-308 80% lower receiver is designed for shooters who want to take control of their firearm build from the ground up. Because it is an 80% receiver, it requires you to complete the final machining steps—drilling the trigger pin holes and milling out the fire control pocket—before it becomes a functional lower. This means you can finish it at home with basic tools and a jig, then pair it with your choice of upper receiver, barrel, and stock. The result is a rifle that feels uniquely yours, built around how you shoot.

Features & Specs

Every aspect of this lower is engineered for reliability and ease of use. The polymer construction is glass-reinforced for stiffness, and the geometry matches mil-spec dimensions for compatibility with most LR-308 parts. Here is what you get:

• Reinforced polymer frame that resists flex under heavy recoil and extreme temperatures
• Compatible with standard LR-308/AR-10 upper receivers and lower parts kits
• Integrated trigger guard and flared magazine well for faster reloads

Beyond the basics, the polymer80 lr-308 80% lower receiver includes a rear takedown pin detent hole that is pre-drilled, and the fire control pocket is roughed in to reduce finishing time. You will need to complete the remaining steps using a dedicated jig and a drill press or hand drill, but the process is well-documented and manageable for most DIY builders.

Who It’s For

This lower is for the hands-on shooter who enjoys the process as much as the result. If you have built an AR-15 before and want to step up to a larger caliber, this is a natural next project. It suits anyone who values customization over convenience—whether you are building a precision long-range rig, a hunting rifle, or a durable patrol-style carbine. The polymer80 lr-308 80% lower receiver is also a solid choice if you want to avoid the paperwork and background check associated with buying a completed receiver, though you will still need to follow all local, state, and federal laws when finishing and assembling it.

• Perfect for DIY builders with some experience in 80% lowers
• Ideal for creating a lightweight .308 or 6.5 Creedmoor rifle
• Great for shooters who want to spread the cost of a build over time

Shipping & FFL

Because this is an 80% lower receiver, it is not considered a firearm by the ATF and can be shipped directly to your door. No Federal Firearms License (FFL) transfer is required for the purchase or shipment of this item. However, once you complete the machining and assemble it into a functional firearm, you are responsible for complying with all applicable laws, including any state or local restrictions on unserialized firearms. We recommend checking your local regulations before ordering.

• No FFL transfer needed for this 80% receiver
• Ships directly to your address
• You are responsible for legal compliance upon completion