Best 80% Lower Receivers: Top Picks For Your Diy Build

When it comes to building your own AR-15, choosing the right lower receiver is critical. The lower receiver is essentially the heart of your firearm, housing the trigger mechanism, magazine well, and more. So if you're considering a DIY build, understanding the options available can make all the difference in performance, reliability, and overall satisfaction with your rifle. In this guide, we’ll dive into the best 80% lower receivers, providing you with essential tips, techniques, and common pitfalls to avoid. 🛠️

What is an 80% Lower Receiver?

An 80% lower receiver is a partially finished lower receiver that requires machining to become a functional firearm. This process allows enthusiasts to complete their builds without going through the same regulations as a fully finished receiver, offering a unique DIY experience. However, it’s essential to note that, while building from an 80% lower is legal, you must follow local laws and regulations regarding firearm construction.

Top Picks for 80% Lower Receivers

When selecting an 80% lower receiver, you have various brands and features to consider. Here are some top picks to kickstart your DIY build:

<table> <tr> <th>Brand</th> <th>Material</th> <th>Weight</th> <th>Price</th> </tr> <tr> <td>Anderson Manufacturing</td> <td>7075-T6 Aluminum</td> <td>0.9 lbs</td> <td>$59.99</td> </tr> <tr> <td>Ghost Firearms</td> <td>7075-T6 Aluminum</td> <td>1.0 lbs</td> <td>$89.95</td> </tr> <tr> <td>Tactical Machining</td> <td>6061-T6 Aluminum</td> <td>0.8 lbs</td> <td>$79.99</td> </tr> <tr> <td>16D</td> <td>7075-T6 Aluminum</td> <td>0.9 lbs</td> <td>$79.99</td> </tr> <tr> <td>Hyperfire</td> <td>7075-T6 Aluminum</td> <td>0.95 lbs</td> <td>$99.99</td> </tr> </table>

Key Features to Consider

• Material: Most 80% lower receivers are made of aluminum, with 7075-T6 being the preferred choice due to its strength and durability. 6061-T6 is also popular and generally lighter but not as robust.
• Weight: Depending on your build requirements, you might prefer a lighter or more robust receiver. Consider your specific needs for comfort and performance.
• Price: Prices can vary significantly based on brand and features. Determine your budget before making a selection.

Helpful Tips for Using 80% Lower Receivers

Building your AR-15 from an 80% lower is rewarding but requires careful attention to detail. Here are some helpful tips to guide you through the process:

1. Tools You Will Need

Before you get started, make sure you have the necessary tools. Commonly needed tools include:

• Drill press or milling machine
• Bits and end mills
• Clamps
• Router (if needed for finishing)
• Safety gear (gloves, goggles)

2. Follow the Instructions Carefully

Most manufacturers provide a user manual or template that outlines the steps for finishing the lower receiver. Follow these instructions closely to avoid mistakes that could compromise your build.

3. Be Patient and Take Your Time

Machining the lower receiver requires precision. Rushing through the process can lead to errors, so take your time, measure twice, and cut once!

4. Test Fit Components

As you progress, continually test fit your components (like the trigger and safety selector) to ensure everything aligns correctly. This can save you time in the long run and reduce frustrations.

5. Finishing Touches

Once you’ve completed your build, consider finishing your lower receiver with a protective coating or anodizing. This can enhance the durability and appearance of your firearm.

Common Mistakes to Avoid

Building your AR-15 is an exciting endeavor, but it's easy to make mistakes. Here are common pitfalls to watch out for:

• Inadequate Preparation: Ensure all tools and materials are ready before you begin. Lack of preparation can lead to interruptions and errors.
• Ignoring Local Laws: Understand the legality of building firearms in your jurisdiction to avoid any legal issues.
• Neglecting Safety Precautions: Always prioritize safety when working with machinery and firearms.

Troubleshooting Common Issues

Sometimes, things don’t go as planned. Here are a few common issues and their solutions:

• Misaligned Components: If parts don’t fit correctly, double-check your measurements and ensure proper alignment during assembly.
• Incomplete Cuts: If you notice some sections aren’t completely machined, use your drill press to refine those areas.
• Loose Fittings: Make sure screws and pins are tightened adequately to prevent rattling or movement during use.

<div class="faq-section"> <div class="faq-container"> <h2>Frequently Asked Questions</h2> <div class="faq-item"> <div class="faq-question"> <h3>Is it legal to build an AR-15 from an 80% lower receiver?</h3> <span class="faq-toggle">+</span> </div> <div class="faq-answer"> <p>Yes, it is legal in many areas, but you should always check your local laws and regulations regarding firearm construction.</p> </div> </div> <div class="faq-item"> <div class="faq-question"> <h3>What tools do I need to complete an 80% lower receiver?</h3> <span class="faq-toggle">+</span> </div> <div class="faq-answer"> <p>Common tools include a drill press, various drill bits, clamps, and safety gear. A router may be needed for finishing touches.</p> </div> </div> <div class="faq-item"> <div class="faq-question"> <h3>Can I sell my completed AR-15?</h3> <span class="faq-toggle">+</span> </div> <div class="faq-answer"> <p>It is generally not permitted to sell home-built firearms without following local regulations, so consult your state laws before proceeding.</p> </div> </div> <div class="faq-item"> <div class="faq-question"> <h3>How do I finish an 80% lower receiver?</h3> <span class="faq-toggle">+</span> </div> <div class="faq-answer"> <p>Finishing involves drilling the necessary holes and machining the interior parts to fit components. Follow the manufacturer’s instructions closely.</p> </div> </div> </div> </div>

Recapping the key takeaways from this article, selecting the best 80% lower receiver can significantly enhance your DIY build experience. Remember to consider factors such as material, weight, and price. Also, adhere to safety practices, legal regulations, and the importance of patience throughout your build. If you're eager to improve your skills and knowledge, don’t hesitate to explore additional tutorials on building your AR-15 or other firearms.

<p class="pro-note">🔧Pro Tip: Always prioritize safety and accuracy; take your time with each step for the best results.</p>