Lower receivers are an essential component of firearms, and there are a variety of types available. One type of lower receiver is the 80 lower receiver. An 80 lower receiver is a unit that helps to form the base of a firearm and is typically made of aluminum. In this blog post, we will explore 16 different lower receivers and explain why they are important to consider when purchasing a firearm.

What is a lower receiver?

Lower receivers are a crucial part of firearms, serving as the foundation upon which the rest of the firearm is built. Essentially, a lower receiver houses the trigger assembly, magazine well, and other critical components that allow a firearm to function properly. It is typically made of aluminum due to its lightweight and durable properties.

Think of a lower receiver as the backbone of a firearm. It is responsible for housing and organizing all the necessary components that make a gun work. Without a lower receiver, a firearm would simply not be functional. Understanding the importance and function of a lower receiver is key to appreciating its role in firearm construction. In the next sections, we will delve deeper into the various types of lower receivers, with a specific focus on the 80 lower  receiver. Stay tuned!

Types of lower receivers

When it comes to lower receivers, there are numerous types to choose from. Each type has its own unique features and benefits that cater to different preferences and needs. One common type is the stripped lower receiver, which is essentially just the bare bones of a lower receiver. This allows for maximum customization, as you can add on your preferred components and accessories.

Another type is the billet lower receiver, which is machined from a solid block of aluminum. This results in a more intricate and aesthetically pleasing design. The forged lower receiver, on the other hand, is made by hammering and pressing aluminum into shape. It is known for its durability and strength.

Other types include the polymer lower receiver, which is lightweight and resistant to corrosion, and the ambidextrous lower receiver, which is designed for ambidextrous shooters. Ultimately, the type of lower receiver you choose will depend on your specific needs and preferences.

What is an 80% lower receiver?

An 80% lower receiver is a unique type of lower receiver that has gained popularity among firearm enthusiasts and builders. So, what exactly is an 80% lower receiver? Well, it’s essentially a partially completed lower receiver that is not considered a firearm by the ATF (Bureau of Alcohol, Tobacco, Firearms, and Explosives). It is called “80%” because it is only 80% complete, meaning the buyer needs to perform the remaining 20% of machining and assembly to transform it into a fully functional lower receiver.

The appeal of the 80% lower receiver lies in its versatility and customization options. Since it is not classified as a firearm, it can be purchased and shipped directly to your doorstep without the need for an FFL (Federal Firearms License) transfer. This allows for greater privacy and convenience. Additionally, by finishing the remaining machining work yourself, you have the freedom to personalize your firearm to your exact specifications.

However, it’s important to note that while the 80% lower receiver may not be regulated as a firearm, the final product you create from it is subject to all applicable laws and regulations. Always ensure that you understand and follow the laws in your jurisdiction before completing an 80% lower receiver. With that said, the 80% lower receiver provides an exciting opportunity for firearm enthusiasts to create their own custom-built firearms.

Benefits of owning an 80% lower receiver

Owning an 80% lower receiver comes with a multitude of benefits for firearm enthusiasts. Firstly, the privacy and convenience it offers cannot be understated. Since the 80% lower receiver is not considered a firearm, it can be purchased and delivered right to your doorstep without the need for an FFL transfer. This means you can avoid the hassle and paperwork involved in purchasing a traditional firearm.

Additionally, finishing the remaining 20% of machining work yourself allows for endless customization options. You have the freedom to personalize your firearm exactly to your specifications, whether it’s choosing a unique design, adding specific accessories, or even engraving your own personal touch. This level of customization sets your firearm apart from the rest, making it truly one-of-a-kind. Owning an 80% lower receiver not only gives you the opportunity to build your dream firearm, but it also provides a sense of accomplishment and pride in creating something with your own hands.

How to finish an 80% lower receiver

If you’ve decided to take on the challenge of finishing an 80% lower receiver, you’re in for an exciting journey. While the process may seem intimidating at first, it can be incredibly rewarding. Here are some steps to guide you through the process:

1. Gather the necessary tools and materials: Before you begin, make sure you have all the tools and materials you’ll need, including a drill press or milling machine, drill bits, end mills, vise, and safety equipment.
2. Understand the instructions: Familiarize yourself with the instructions that come with your specific 80% lower receiver. These instructions will provide you with the step-by-step process to follow.
3. Mark the areas to be machined: Use a marker or engraving tool to clearly mark the areas of the lower receiver that need to be machined. This will help ensure accuracy during the machining process.
4. Secure the lower receiver: Use a vise to securely hold the lower receiver in place while you work. This will help maintain stability and prevent any accidents.
5. Begin the machining process: Start by drilling the necessary holes and then move on to the milling process. Follow the instructions carefully and take your time to ensure precision.
6. Test fit components: Once the machining is complete, test fit the various components to ensure everything fits properly. Make any necessary adjustments as needed.
7. Finish and assemble: After all the machining work is done, you can choose to finish the lower receiver with a coating or paint. Once it’s dry, you can assemble the remaining components to complete your firearm.

Remember, always prioritize safety and follow any legal requirements in your jurisdiction. Finishing an 80% lower receiver is a challenging but rewarding endeavor that allows you to create a truly unique firearm that fits your exact preferences. Happy building!