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PM Polymer80 Mag

80 Percent Lower | 80% Lowers | VERY FAST SHIPPING

SKUpx-925-80-percent-lower-80-lower-930453
$97.09
✓ Free shipping over $99   ✓ Ships in 1–2 business days   ✓ 30-day returns

About this product

80 Percent Lower | 80% Lowers | Very Fast Shipping

Building your own firearm from the ground up starts with the most critical component: the receiver. When you choose an 80 percent lower, you are choosing the foundation of a custom build that matches your exact specifications. We stock these blanks with the understanding that you want quality material, precise machining, and a straightforward path to completion. With our very fast shipping, you will have your project in hand before you know it.

Overview

An 80 percent lower is a partially machined receiver that requires you to complete the final material removal to create a functional firearm frame. Because it is not yet a firearm under federal law, it can be shipped directly to your door without going through a Federal Firearms License (FFL) dealer. These lowers are made from 7075-T6 aluminum, the same material used in mil-spec completed receivers. They come with a jig-compatible pocket design so you can finish the work with standard tools or a drill press. Whether you are a first-time builder or a seasoned gunsmith, this part gives you full control over your firearm’s final configuration.

Features & Specs

  • Manufacturer-spec 7075-T6 aluminum billet with a hardcoat anodized finish for corrosion resistance and durability.
  • Pre-machined fire control cavity, takedown pin holes, and trigger slot — only the trigger pocket and safety selector area require final milling.
  • Compatible with standard AR-15 lower parts kits, buffer tubes, and stocks; no proprietary components needed.

Every 80 percent lower we carry is inspected for dimensional accuracy before it leaves our warehouse. The pocket depth is consistent, the threads are clean, and the mating surfaces are flat. You will not fight sloppy tolerances or misaligned holes when you start your build. This blank is ready for you to finish with confidence.

Who It’s For

This product is for anyone who wants to build a firearm that is uniquely theirs. It is ideal for hobbyists who enjoy the hands-on process of machining and assembling their own rifle. It is also a great choice for those who want to keep their build off the books entirely, as an unfinished lower does not require a serial number until it becomes a functional firearm. If you have basic mechanical skills and a desire to learn, an 80 percent lower is a rewarding project. We also recommend it for experienced builders who want to stock up on quality blanks for future projects without the usual wait times.

Shipping & FFL

  • We ship all 80 percent lowers with very fast shipping — typically within one business day via priority mail.
  • No FFL transfer is required for purchase or delivery. These are not yet firearms under ATF regulations, so they ship directly to your address.
  • You are responsible for understanding and complying with your local, state, and federal laws regarding the completion and ownership of a firearm made from an 80 percent lower.

Important FFL Transfer Disclaimer: While an 80 percent lower does not require an FFL transfer at the time of purchase, once you complete the machining to create a functional firearm, you are legally required to comply with all applicable laws in your jurisdiction. This includes restrictions on possession, sale, or transfer of the finished firearm. We recommend reviewing ATF guidelines and your state statutes before beginning your build. We do not provide legal advice, and you assume all responsibility for the lawful completion and use of this product.

What's in the box

  • 80 Percent Lower | 80% Lowers | VERY FAST SHIPPING
Sources & methodology. Editorial review and rating by Marcus Thorne based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$97.09