Unleashing the Potential of an 80 Percent Lower: A Comprehensive Guide

At, we understand the growing interest in firearm customization and the pursuit of building personalized rifles. One of the cornerstones of this endeavor is the 80 percent lower. For enthusiasts looking to combine craftsmanship with the satisfaction of assembling a firearm from scratch, an 80 percent lower offers the perfect starting point.

What is an 80 Percent Lower?

An 80 percent lower is a partially completed lower receiver that requires additional machining to be fully functional. Unlike fully finished lower receivers, an 80 percent lower is not considered a firearm by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). This distinction allows individuals to purchase and work on them without the need for a serial number or background check, provided they comply with state and local laws.

At, we pride ourselves on providing high-quality 80 percent lowers that are precisely manufactured to ensure ease of completion and reliability.

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Why Choose an 80 Percent Lower?

  1. Customization and Personalization: Using an 80 percent lower allows you to build a firearm tailored to your specifications. From choosing the material and finish to selecting the parts and accessories, the possibilities are endless.
  2. Learning Experience: Completing an 80 percent lower is an educational journey. It offers a hands-on experience that deepens your understanding of how firearms operate, fostering a greater appreciation for the mechanics and engineering involved.
  3. Cost-Effective: Building a rifle from an 80 percent lower can be more economical than purchasing a pre-assembled firearm. This approach allows you to allocate your budget to specific components, ensuring you get the best value for your money.
  4. Privacy: For those who value privacy, an 80 percent lower provides an opportunity to build a firearm without the need for a serial number, offering a degree of anonymity in your firearm collection.

The Process of Completing an 80 Percent Lower

At, we provide comprehensive guides and resources to assist you in completing your 80 percent lower. Here’s a step-by-step overview of the process:

  1. Gathering Tools and Materials: To complete an 80 percent lower, you’ll need a set of tools, including a drill press or milling machine, jigs, and bits. It’s essential to have all necessary tools ready before you start.
  2. Securing the Lower in a Jig: A jig helps guide your tools and ensure precision during the machining process. Secure your 80 percent lower in the jig according to the manufacturer’s instructions.
  3. Drilling and Milling: Follow the guide to drill and mill the necessary holes and cavities in the lower receiver. This step requires patience and attention to detail to ensure the final product is accurate and functional.
  4. Finishing Touches: After machining, clean and deburr the receiver to remove any sharp edges or burrs. This step is crucial for ensuring the smooth operation of your firearm.
  5. Assembling the Rifle: Once your 80 percent lower is completed, you can assemble the rest of the rifle. This involves installing the lower parts kit, buffer tube, stock, and upper receiver.

Safety Considerations

Safety is paramount when working with firearms. At, we emphasize the importance of following safety guidelines and local laws. Always wear appropriate safety gear, including eye and ear protection, when working on your 80 percent lower. Additionally, ensure that your workspace is well-ventilated and free of distractions.

Legal Considerations

While an 80 percent lower is not considered a firearm by federal law, it’s crucial to stay informed about state and local regulations. Some states have specific restrictions on the possession and completion of 80 percent lowers. At, we encourage all customers to conduct thorough research and comply with all applicable laws.

Why Choose

At, we are dedicated to providing enthusiasts with the best 80 percent lowers on the market. Our products are crafted with precision and attention to detail, ensuring a seamless experience from start to finish. Here’s why you should choose us:

  1. Quality Assurance: We rigorously test our 80 percent lowers to ensure they meet the highest standards of quality and reliability.
  2. Expert Support: Our team of experts is always available to provide guidance and support throughout your building journey. Whether you’re a novice or an experienced builder, we’re here to help.
  3. Comprehensive Resources: From detailed guides to instructional videos, we offer a wealth of resources to assist you in completing your 80 percent lower with confidence.
  4. Customer Satisfaction: At, customer satisfaction is our top priority. We are committed to providing exceptional products and service to ensure your building experience is enjoyable and rewarding.


Embarking on the journey of completing an 80 percent lower is a rewarding experience that combines craftsmanship, education, and personalization. At, we are proud to support firearm enthusiasts in their pursuit of building custom rifles. With our high-quality products, expert support, and comprehensive resources, we are your trusted partner in the world of 80 percent lowers.

Whether you’re building your first rifle or adding to your collection, has everything you need to succeed. Explore our selection of 80 percent lowers today and unleash your creativity and passion for firearms.

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