What is an 80% Lower and Why You Should Consider It

If you’re a firearm enthusiast, you’ve probably heard the term “80% lower.” But what exactly is an 80% lower, and why has it become so popular among gun builders and hobbyists? In this comprehensive blog, we will explore the ins and outs of the 80% lower, its benefits, legal considerations, and why you should consider purchasing one from

Understanding the 80% Lower

An 80% lower is a partially completed firearm receiver that requires additional machining to become a functional part of a firearm. The term 80% lower comes from the fact that these receivers are 80% finished, leaving the remaining 20% for the purchaser to complete. This allows individuals to build their own firearms from scratch, adding a level of customization and personal involvement that cannot be matched by purchasing a fully assembled firearm.

At, we specialize in providing high-quality 80% lowers that are perfect for both novice and experienced gun builders. Our products are made from durable materials and designed to be easy to work with, ensuring that you can complete your build with confidence.

Benefits of Using an 80% Lower

There are several benefits to using an 80% lower, especially when you purchase from a reputable source like

  1. Customization: One of the most significant advantages of an 80% lower is the ability to customize your firearm to your exact specifications. You can choose the type of lower receiver, the finish, and even the components that you use to complete your build. This level of customization allows you to create a firearm that is uniquely yours.
  2. Cost Savings: Building your own firearm from an 80% lower can be more cost-effective than purchasing a fully assembled firearm. By sourcing parts individually and doing the assembly yourself, you can save money while still creating a high-quality firearm.
  3. Learning Experience: For those who enjoy hands-on projects, building an 80% lower is a fantastic learning experience. It allows you to gain a deeper understanding of how firearms work and can be a rewarding hobby in its own right.
  4. Privacy: Purchasing an 80% lower from means that you can build a firearm without the need for a background check or registration, as the 80% lower is not considered a firearm by federal law. This offers a level of privacy that is not possible with fully assembled firearms.
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Legal Considerations

While the benefits of an 80% lower are clear, it’s essential to understand the legal considerations involved in building your own firearm. At, we always advise our customers to stay informed and comply with all federal, state, and local laws.

  1. Federal Law: Under federal law, an 80% lower is not considered a firearm, which means it can be purchased without a background check. However, once you complete the machining process, the lower receiver becomes a firearm and must comply with all applicable laws.
  2. State Laws: Some states have specific regulations regarding the possession and use of 80% lowers. For example, certain states require serialization of the completed firearm, while others may have restrictions on the types of firearms that can be built. It’s crucial to research and understand the laws in your state before starting your build.
  3. Building Process: Completing an 80% lower requires the use of specialized tools and equipment, such as a milling machine or a drill press. At, we provide detailed instructions and support to help you through the process, but it’s important to have the necessary skills and equipment to ensure a safe and successful build.

Why Choose

When it comes to purchasing an 80% lower, choosing a reputable supplier is critical. Here are a few reasons why should be your go-to source:

  1. Quality Products: At, we pride ourselves on offering only the highest quality 80% lowers. Our products are manufactured to precise standards, ensuring a perfect fit and reliable performance.
  2. Expert Support: Our team of experts is always available to provide support and guidance throughout your build. Whether you have questions about the machining process or need advice on selecting the right components, we’re here to help.
  3. Comprehensive Resources: We offer a wealth of resources on our website, including detailed guides, videos, and tutorials to assist you in every step of your build. Our goal is to make the process as straightforward and enjoyable as possible.
  4. Customer Satisfaction: Customer satisfaction is our top priority at We stand behind our products and are committed to ensuring that you have a positive experience with every purchase.


Building your own firearm from an 80% lower is a rewarding and fulfilling project that offers numerous benefits, from customization and cost savings to privacy and a valuable learning experience. However, it’s essential to understand the legal considerations and ensure that you have the necessary skills and equipment to complete the build safely.

When you choose for your 80% lower needs, you can rest assured that you’re getting a high-quality product backed by expert support and comprehensive resources. Whether you’re a seasoned builder or new to the world of 80% lowers, we have everything you need to create a firearm that is uniquely yours.

Visit today to browse our selection of 80% lowers and get started on your build. With our commitment to quality and customer satisfaction, you can trust that you’re making the right choice for your next firearm project

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