Are you an avid gun enthusiast looking for a DIY project to work on at home? If so, you might come across the terms “stripped lower” and “80 lower” quite frequently. But, what do they actually mean and how do they differ from each other?
A stripped lower refers to the lower receiver of a firearm that has been entirely stripped of its parts. Essentially, it is a raw piece of metal that has not been drilled, milled, or engraved. It’s essential to note that stripped lower receivers are not considered firearms, so they can be legally purchased without the need for a background check. However, they can’t be used until they are complete, meaning they have all the necessary parts.
On the other hand, an 80 lower refers to a lower receiver that is 80% finished, meaning it still needs some work to be completed. Unlike stripped lower receivers, 80 lowers are considered firearms and require a background check to purchase. The main difference between the two is that an 80 lower needs to be completed before it can be used, whereas a stripped lower can be completed and used as soon as all the necessary parts are installed. With this basic understanding, it’s important to decide which lower receiver is best suited for your needs.
The Basics of Lower Receivers
A lower receiver, also known as a lower, is the part of the firearm that houses the trigger assembly, magazine well, and pistol grip. It is the foundation upon which the entire firearm is built. While it is the lower receiver that is legally considered to be the firearm itself, the upper receiver, which includes the barrel and bolt carrier group, is responsible for discharging the bullet. In this article, we will explore the differences between stripped lowers and 80 lowers.
- Stripped Lower: A stripped lower is the barebones version of the lower receiver. It is essentially a block of metal that has been formed into the basic shape of a lower receiver without any of the necessary parts installed.
- 80 Lower: An 80 lower is a partially completed lower receiver. It is not considered a firearm by the ATF until it has been fully machined and is in a state that is capable of accepting the necessary parts. Once the lower is completed, it must be engraved with a serial number and meet all legal requirements to be considered a firearm.
When deciding between a stripped lower and an 80 lower, it is important to consider the level of skill and equipment necessary to complete the lower. While a stripped lower may be easier to work with, a certain level of skill and specialized equipment is necessary to properly complete an 80 lower. It is also important to consider the legal considerations associated with completing your own lower receiver.
If one is interested in completing an 80 lower, it is important to ensure that the lower is fully machined according to the manufacturer’s instructions. Improper machining can lead to safety issues and the potential for the firearm to malfunction. It is also important to ensure that all legal requirements are met, including proper engraving of the serial number.
| Stripped Lower | 80 Lower |
|---|---|
| Barebones version of the lower receiver | Partially completed lower receiver |
| No necessary parts installed | Not considered a firearm until fully machined |
| Easier to work with | Requires certain level of skill and specialized equipment to complete |
In conclusion, while both stripped lowers and 80 lowers serve the same basic function, there are important differences between the two. When deciding which type of lower receiver to use, it is important to consider your level of skill and equipment, as well as the legal requirements associated with completing your own firearm.
Understanding Stripped Lowers
Stripped lower receivers are the foundation of every rifle build. They are the serialized part of the rifle that is legally considered a firearm. A stripped lower receiver is a metal housing that holds the firearm’s trigger, hammer, magazine latch, and safety selector. However, it doesn’t include a stock, buffer, or buffer tube. These parts are not regulated and can be purchased and shipped without any paperwork.
- Stripped lowers are ideal for those who want to customize their builds in detail. They are essentially a blank canvas allowing for greater customization options.
- By buying a stripped lower receiver, you can choose your quality, brand, and price point for every upgrade on your rifle’s lower assembly.
- If you plan to build several rifles, purchasing a stripped lower receiver enables you to have multiple builds without the need to purchase several complete rifles. This is because every serialized lower receiver is considered a firearm by the federal government, so it is subject to all relevant gun laws.
To complete your build, you’ll also need to purchase and install an 80% lower receiver. An 80% lower receiver is also called a partially finished lower, which is a block of solid material that’s missing the drilling and milling needed to make it a functional aluminum lower.
However, some factors to consider when purchasing an 80% lower receiver include:
- They require a level of skill and knowledge of firearm laws to complete, so they may not be ideal for first-time builders or those without the required tools.
- An 80% lower receiver is not considered a firearm and does not require an FFL. However, it is not illegal to purchase a completed lower without an FFL, but it may be illegal to possess a firearm if it does not have a completed lower.
- Since 80% lowers are not serialized, they are not traceable. This characteristic makes them a popular option for building firearms with complete privacy.
Stripped Lower Vs. 80% Lower: What’s the difference?
The main difference between stripped and 80% lower receivers is that stripped lowers are considered firearms by the federal government, while 80% lower receivers are not. An 80% lower receiver requires additional milling to transform into a functioning lower. However, an 80% lower gives greater flexibility and customization options to the builder, as they’re free to choose their design from scratch.
| Stripped Lower Receiver | 80% Lower Receiver |
|---|---|
| Serialized | Not serialized |
| Considered a firearm | Not considered a firearm |
| Drilling and milling complete | Requires drilling and milling |
If you’re a novice builder and aren’t familiar with firearm laws, stripped lowers are an ideal option since they’re pre-milled, serialized, and can be shipped directly to your doorstep. However, if you’re looking to customize your build from scratch and have experience with milling and drilling, 80% lower receivers give you greater flexibility and lower cost overall.
The Definition of 80 Lowers
An 80 lower is a partially finished metal or polymer lower receiver that requires additional machining to be completed into a functional firearm. The term “80” refers to the legal requirement that the lower receiver must be at least 80% complete before it is considered a firearm by the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF).
There are several types of 80 lowers, including:
- Forgings: These are the most common type of 80 lower and are made from a block of aluminum that is shaped using a forging press. They are generally the strongest type of lower receiver and offer the most customization options due to their increased surface area.
- Billet: These are made by machining a block of aluminum into the desired shape. They are generally more expensive than forgings but offer greater design options and aesthetics.
- Polymer: These are made from a high-strength polymer material that is injection molded into the desired shape. They are generally the cheapest option and are lightweight and durable.
Once the 80 lower receiver is machined to completion, it can be assembled with additional parts such as an upper receiver, barrel, bolt carrier group, and other components to create a functioning firearm.
There are several benefits to building a firearm using an 80 lower, including the ability to customize the gun to suit personal preferences and legal benefits such as avoiding background checks or registration requirements. However, it is important to note that building a firearm using an 80 lower requires a certain level of technical skill, as well as compliance with all federal and state laws relating to firearms.
Differences between Stripped and 80 Lowers
When it comes to building an AR-15 rifle, choosing between a stripped lower and an 80 lower can be confusing. They share common features but differ in a few areas. Here are the main differences you need to know:
- A stripped lower is a partially completed lower receiver that lacks specific vital components like the trigger group, magazine catch assembly, and bolt catch assembly, among others. On the other hand, an 80 lower also lacks essential components, but it doesn’t have a serial number, and you can’t buy it as a complete receiver.
- Since a stripped lower is considered a firearm, you can buy it without an FFL (Federal Firearms License) from a licensed dealer or online. In contrast, an 80 lower is unregulated and can be bought as a piece of metal or polymer online or at a hardware store without a background check or ATF paperwork. However, it’s illegal to manufacture one if you’re a prohibited person or if you plan to sell it.
- Another difference between a stripped lower and an 80 lower is the amount of work needed to turn them into a functioning firearm. A stripped lower requires you to buy additional parts and assemble them before you can attach the upper receiver, while an 80 lower mandates that you finish milling operations before adding components. Moreover, finishing an 80 lower requires more tools and skills because it involves cutting and drilling using a milling machine or a drill press. Stripped lowers, on the other hand, don’t need any specialized tools compared to an 80 lower.
- A 80 lower is not considered a firearm until you finish it, add a trigger group and other components, and can’t be traced because it doesn’t have a serial number. This makes it popular among gun enthusiasts who value privacy and don’t want the government to know about their firearms. In contrast, a stripped lower has a serial number and transfers ownership through a formal process, making its ownership and use easily traceable.
Conclusion
Whether you choose a stripped lower or an 80 lower, it’s essential to know their differences before making a buying decision. The primary difference between both is that a stripped lower is a partially completed receiver that lacks crucial components; while an 80 lower needs additional milling and drilling operations before it can accommodate components. Whichever option you pick, ensure that you comply with state and federal laws, especially regarding background checks, serial numbers, and possession restrictions.
If you’re looking for privacy, an 80 lower is suitable for building an untraceable AR-15 rifle that doesn’t require registration or a background check. However, if traceability and accountability are important, stripped lowers are the way to go.
| Feature | Stripped Lower | 80 Lower |
|---|---|---|
| Regulation | Regulated | Unregulated |
| Required tools and skills | Minimal tools and skills | Specialized tools and advanced skills |
| Serial number | Has serial number | No serial number |
| Transfer of ownership | Formal process | Informal process |
Table: A summary of the differences between Stripped and 80 lowers.
Pros and Cons of Stripped Lowers
When it comes to building or customizing an AR-15 rifle, selecting the right lower receiver is crucial. The lower receiver is essentially the foundation of your rifle and is responsible for housing the trigger group, magazine well, and buffer assembly. Stripped lowers and 80 lowers are two popular options when it comes to selecting a lower receiver. In this article, we will dive into the pros and cons of stripped lowers.
- Pros:
- Flexibility: Stripped lowers offer the most flexibility when it comes to selecting and changing different parts of the rifle. You can customize your rifle to your liking using various aftermarket parts because stripped lowers have no pre-drilled holes or markings.
- Budget-Friendly: Stripped lowers are cheaper than complete lowers or 80 lowers. This is because they do not come with any parts and require additional investment in purchasing and assembling parts.
- Easy to Build: Stripped lowers are easy to build and only require simple tools such as a vise and a torque wrench. They are perfect for those who want to get hands-on with their build and have control over the entire process.
- Cons:
- Requires Additional Work: Unlike complete lowers, stripped lowers do not come with a buffer tube, buttstock, or a lower parts kit, which means additional time and investment in purchasing the parts separately. This can be quite daunting for new builders.
- Regulatory Restrictions: Although stripped lowers are not classified as firearms, they are still considered regulated items by the ATF. This means they cannot be sold to individuals under 21 years of age or to non-US residents.
- No Warranty: Stripped lowers do not come with any warranty or guarantee from the manufacturer. This means you are liable for any issues or problems that may arise during the assembly process and you will have to pay out of pocket to resolve them.
Overall, stripped lowers offer great flexibility, are budget-friendly, and easy to build. However, they do require additional work and investment, come with regulatory restrictions, and lack any warranty or guarantee from the manufacturer. It’s important to consider all these factors before selecting a stripped lower for your build.
Pros and Cons of 80 Lowers
An 80 lower is a partially machined firearm receiver that is not considered a firearm under federal law. It is sold as a blank canvas for the DIY enthusiast to complete the finishing work themselves. An 80 lower is not serialized, and the builder does not need to pass a background check to purchase one. They are known for being affordable, accessible, and versatile firearms when completed. However, there are some pros and cons to consider before buying an 80 lower.
- Pros:
- Accessibility – They are legal to purchase and own without serial numbers or background checks.
- Affordability – 80 lowers are typically cheaper than stripped lowers because they require more work to finish.
- Versatility – They allow for customization, and the builder can choose the caliber, color, and attachments they prefer.
- DIY Experience – Building an 80 lower provides an excellent DIY experience and a sense of accomplishment.
- Privacy – Since 80 lowers are not serialized, the builder can maintain their privacy and security.
- No Paperwork – There is no need for paperwork while purchasing an 80 lower like you might need for a stripped lower or complete rifle.
Cons:
Of course, not everything is perfect when it comes to 80 lowers. Here are some possible cons to keep in mind:
- Time and Effort – Finishing an 80 lower takes time, effort, and patience. It requires specialized tools and skills, and it’s easy to make mistakes that could ruin the project.
- Quality Control – The quality of an 80 lower is only as good as the builder makes it. There is no guarantee of the quality of materials or the accuracy of the machining. Some builders may not have the experience to build a functional and reliable firearm.
- Legal Grey Area – Although owning and building an 80 lower is legal in most states, the legality can be murky, and the laws can change rapidly. It’s essential to check the state and local laws before proceeding with an 80 lower project.
Before you decide to purchase an 80 lower, take the time to do your research and understand the pros and cons. Be aware of the laws and regulations in your area, and make sure you have the necessary skills and tools to complete the project. If you do choose to build an 80 lower, remember to prioritize safety and consult with experts if you have any questions or concerns.
| Pros | Cons |
|---|---|
| Accessibility | Time and Effort |
| Affordability | Quality Control |
| Versatility | Legal Grey Area |
| DIY Experience | |
| Privacy | |
| No Paperwork |
Overall, an 80 lower can be an enjoyable and rewarding project for firearm enthusiasts who want to customize their rifle. However, it’s critical to be aware of the pros and cons to make an informed decision and prioritize safety throughout all stages of the project.
Choosing the Right Lower Receiver for Your Build
When it comes to building your own AR-15 rifle, one of the most important decisions you’ll make is choosing the right lower receiver. This is the part that houses the trigger group, magazine well, and buffer tube assembly, and it can be either a stripped lower or an 80 lower. Here’s what you need to know to make the right choice:
- Price: Stripped lowers are typically less expensive than 80 lowers, which require extra time and effort to complete. However, the cost of an 80 lower may be offset by the satisfaction of having a completely custom rifle.
- Legal Considerations: Stripped lowers are considered firearms by the ATF and require a background check and transfer through an FFL dealer. 80 lowers, on the other hand, are considered “paperweights” until they are completed and do not require any paperwork or background check.
- Completing the Lower: Stripped lowers require additional parts such as a lower parts kit, buffer tube assembly, and stock. 80 lowers require additional machining to complete the fire control group pocket, trigger pin holes, and safety selector switch slot. While both options require some level of knowledge and skill, completing an 80 lower may require more technical expertise.
- Customization: Stripped lowers come in a variety of colors and finishes, allowing you to choose the one that best matches your preference. 80 lowers allow for even more customization options, as you can engrave or mill designs into the lower and create a one-of-a-kind lower.
Ultimately, the choice between a stripped lower and an 80 lower comes down to personal preference, budget, and skill level. If you’re a seasoned gunsmith and want a completely customized rifle, an 80 lower may be the way to go. If you’re new to gun building and want an easier and more affordable option, a stripped lower may be the better choice. Whichever you choose, be sure to follow all applicable laws and regulations, and always prioritize safety.
Additional Resources
If you’re still unsure about which lower receiver to choose, here are some additional resources to help:
| Resource | Description |
|---|---|
| Online Forums | Join online forums such as AR15.com or M4Carbine.net, where you can ask questions, read reviews, and get advice from other gun enthusiasts. |
| Gun Shows | Attend gun shows in your area to see different types of lower receivers and talk to vendors and dealers. |
| Gunsmithing Courses | Take a gunsmithing course to learn more about building and customizing rifles, including how to choose the right lower receiver. |
By doing your research and gaining knowledge and expertise, you’ll be able to choose the right lower receiver for your build and enjoy the satisfaction of creating a customized rifle that meets your exact specifications.
FAQs: What’s the Difference Between Stripped Lower and 80 Lower?
1. What is a stripped lower?
A stripped lower is just the lower portion of a gun, also known as the “lower receiver,” with no other parts attached.
2. What is an 80 lower?
An 80 lower is a piece of metal that is not considered a firearm by the ATF, but can be completed with additional parts into a functional firearm.
3. What is the main difference between stripped lower and 80 lower?
The main difference between stripped lower and 80 lower is that stripped lower needs to be transferred through a Federal Firearms License (FFL) dealer while 80 lowers can be completed privately without any paperwork or serial numbers.
4. Which one is better: stripped lower or 80 lower?
It depends on personal preference and individual goals. Stripped lower is a more traditional route with greater customization options while 80 lowers provide more privacy and flexibility.
5. Is it legal to build a gun using an 80 lower?
Yes, it is legal to build a gun using an 80 lower as long as the owner does not sell or transfer the firearm to someone else without proper licensing and registration.
Closing Title: Wrapping Up
Thanks for reading our FAQs on the difference between stripped lower and 80 lower. We hope we’ve provided you with enough information to make an informed decision about your next gun building project. Remember, whether you choose to go with a stripped lower or an 80 lower, always remain safe and responsible. Feel free to visit our website later for more helpful tips and information on guns and gun building.