5 Best 80% Lower Ar-15 Kits You Need To Know

When it comes to building your own AR-15, one of the most rewarding choices is using an 80% lower kit. These kits offer both the satisfaction of crafting your rifle and the flexibility to customize it to your preferences. Whether you’re a seasoned builder or a first-timer, understanding the best options available can significantly enhance your experience. In this guide, we’ll explore the 5 best 80% lower AR-15 kits you need to know, along with helpful tips, advanced techniques, and troubleshooting advice.

What is an 80% Lower?

An 80% lower is essentially a partially completed lower receiver for an AR-15 that requires additional machining to be functional. This means it’s legal for individuals to manufacture their own firearms without the need for a serial number or registration, as long as they don’t sell it later. However, building one does require some tools and skills.

Why Choose an 80% Lower Kit?

• Customization: You get to choose your own components, colors, and accessories to make your rifle truly yours.
• Cost-Effective: Building your own rifle can save you money, especially if you want high-quality components.
• Satisfaction: There’s nothing quite like shooting a firearm you’ve built from the ground up!

Tips for Using 80% Lower AR-15 Kits Effectively

1. Gather Your Tools: Before starting, ensure you have the right tools like a drill, router, and jigs designed for 80% lowers.
2. Read Instructions Carefully: Each kit will have its specific set of instructions. Make sure to follow them closely.
3. Take Your Time: Rushing through the build can lead to mistakes. Take it slow, especially during the critical machining steps.
4. Safety First: Always wear safety glasses and work in a well-ventilated area. Safety should always be a priority.
5. Practice Patience: If you’re unsure about any step, research or ask for help before proceeding.

The 5 Best 80% Lower AR-15 Kits

Here's a detailed look at five of the best 80% lower AR-15 kits that are popular among enthusiasts:

<table> <tr> <th>Kit Name</th> <th>Material</th> <th>Included Components</th> <th>Price Range</th> </tr> <tr> <td>Ghost Gunner 3</td> <td>Aluminum</td> <td>80% lower, jig, tools</td> <td>$1,500</td> </tr> <tr> <td>Palmetto State Armory</td> <td>Forged Aluminum</td> <td>80% lower, jig</td> <td>$99 - $200</td> </tr> <tr> <td>80% Arms Ghost 2</td> <td>Billet Aluminum</td> <td>80% lower, jig, drill bits</td> <td>$239</td> </tr> <tr> <td>CNC Mill 80% Lower Kit</td> <td>6061 Aluminum</td> <td>80% lower, tools, instructional manual</td> <td>$299</td> </tr> <tr> <td>Anderson Manufacturing</td> <td>Forged Aluminum</td> <td>80% lower, jig</td> <td>$150 - $250</td> </tr> </table>

A Closer Look at Each Kit

1. Ghost Gunner 3

   • Material: Aluminum
   • Overview: This advanced CNC machine allows users to complete their lowers with precision. It’s an investment, but well worth it for those serious about customization.
   • Key Features: Automated milling processes that ensure high accuracy.

2. Palmetto State Armory

   • Material: Forged Aluminum
   • Overview: This kit is an excellent choice for beginners due to its simplicity and reliability.
   • Key Features: Comes with a durable jig that makes the machining process easier.

3. 80% Arms Ghost 2

   • Material: Billet Aluminum
   • Overview: Known for its quality and precision, this kit comes with everything you need to get started, including drill bits.
   • Key Features: Clear instructions make this kit beginner-friendly.

4. CNC Mill 80% Lower Kit

   • Material: 6061 Aluminum
   • Overview: This kit includes a milling machine that allows for precise customization, perfect for those looking to fine-tune their builds.
   • Key Features: Comprehensive instructional manual aids in the building process.

5. Anderson Manufacturing

   • Material: Forged Aluminum
   • Overview: A budget-friendly option without compromising on quality. Ideal for those new to building rifles.
   • Key Features: Strong and reliable with a straightforward jig.

Common Mistakes to Avoid

• Misalignment: One of the most common issues arises when the drill bit or router isn't aligned correctly. Always double-check before proceeding.
• Over-Milling: Go slow and steady. Over-milling can lead to a malfunctioning lower.
• Ignoring Regulations: Make sure you’re familiar with the local laws regarding 80% lowers and firearm assembly.

Troubleshooting Tips

• If Your Holes Aren't Aligned: Check the jig and reposition your lower if necessary. A little adjustment can make a big difference.
• If the Lower Doesn’t Fit Properly: Ensure that you haven’t over-milled. Small adjustments with a file might be needed.
• If You're Facing Resistance While Fitting Parts: Inspect the components for debris or machining errors that may be causing the issue.

<div class="faq-section"> <div class="faq-container"> <h2>Frequently Asked Questions</h2> <div class="faq-item"> <div class="faq-question"> <h3>Can I legally sell an AR-15 I built from an 80% lower?</h3> <span class="faq-toggle">+</span> </div> <div class="faq-answer"> <p>No, it’s illegal to sell a firearm that you have made unless it’s properly serialized and registered.</p> </div> </div> <div class="faq-item"> <div class="faq-question"> <h3>What tools do I need to finish an 80% lower?</h3> <span class="faq-toggle">+</span> </div> <div class="faq-answer"> <p>You will need a drill, router, jigs, and bits specific to 80% lowers.</p> </div> </div> <div class="faq-item"> <div class="faq-question"> <h3>Are 80% lower kits a good investment?</h3> <span class="faq-toggle">+</span> </div> <div class="faq-answer"> <p>Yes! They allow for customization and can be cost-effective compared to buying complete rifles.</p> </div> </div> <div class="faq-item"> <div class="faq-question"> <h3>Do I need to register my 80% lower?</h3> <span class="faq-toggle">+</span> </div> <div class="faq-answer"> <p>No, you don’t need to register it as long as you are not selling it.</p> </div> </div> </div> </div>

Reflecting on the information discussed, choosing to build your own AR-15 with an 80% lower kit can be an immensely rewarding venture. You get a custom firearm while enjoying the hands-on process that teaches you more about how your rifle operates.

When you dive into the world of 80% lowers, remember to practice, be patient, and continuously learn. The journey doesn't stop here, as there are countless resources and tutorials available to further enhance your building skills.

<p class="pro-note">🔧Pro Tip: Always keep your work area organized to avoid losing small parts or tools during your build!</p>