Built for People Who Build

We are not simply an online catalog. Our team includes veterans, outdoorsmen, experienced shooters, and hands-on builders who use the types of products we sell.

Every product is selected with the details that matter in mind:

• Material and construction
• Machining, fit, and finish
• Reliability and performance
• Compatibility
• Overall value

We know a successful build starts with parts you can trust. That is why we focus on components we would feel confident using in our own projects.

Built Around American-Made Quality

American-made parts are at the heart of what we do. The majority of the products we offer are made in the USA, and every item in our catalog is selected for its quality, fit, finish, performance, and value.

We work with trusted manufacturers and experienced gunsmiths to offer dependable 80% lower receivers, upper assemblies, barrels, lower-parts kits, tools, and other AR-platform components.

Our inventory supports many of the most popular calibers and configurations, including:

• 5.56 NATO and .223 Remington
• 300 Blackout
• 9mm
• .308 Winchester
• 6.5 Creedmoor

As our selection grows, our standards stay the same: offer reliable parts that builders can feel confident using in their own projects.

The Best Builds Start With the Best Parts.^™

We build, assemble, and shoot, too.

Hands-on experience helps our team better understand fitment, compatibility, and the questions customers face during a project. Our support team has experience with everything from pistol-caliber carbines to full-size bench and sporting rifles.

Have a question about choosing compatible parts or planning a build? You will receive help from someone who understands the products—not someone reading from a generic script.

Why We Started

80-Lower.com was founded in 2014 with a straightforward goal: make quality gunsmithing components and reliable educational resources more accessible to American builders.

We began by helping customers find the receiver blanks, upper assemblies, lower components, and tools needed for AR-platform projects. Since then, we have expanded our product selection and educational library to serve both first-time builders and experienced enthusiasts.

Our Mission Today

Our mission remains the same: help responsible, law-abiding Americans confidently understand, select, and use quality components for their projects.

We support that mission through:

• A strong selection of American-made parts
• Quality products from trusted manufacturers
• Knowledgeable customer support
• Detailed product information
• Compatibility guidance
• Step-by-step tutorials, FAQs, and build resources
• Clear information about purchasing and shipping restrictions

We are proud of the company we have built since 2014—and even prouder that thousands of customers have trusted us with their projects.