An 80% lower receiver is a semi-finished version of a gun that can be legally bought and sold without going through a dealer. They’re called “80%” because they’re missing some of the machinings that would make them a completed firearm. They still need to have the remaining work done before they can be turned into a working gun, but anyone with the right skills and tools can do that.
The most common type of 80% lower receiver is made for an AR-15 rifle. These receivers are made from aluminum, polymer, or both materials. Once finished, they’ll accept any standard AR-15 magazine and all the same parts as a normal AR lower. That means you can use them to build a pistol, carbine, or rifle.
You can buy an 80% lower receiver online or at some gun stores. They’re not regulated by the ATF, so there’s no paperwork to fill out. You don’t need a license or permit to buy one.
Building a gun from an 80% lower receiver is perfectly legal in most states, but there are a few that have restrictions. California, for example, has a law that requires all guns to be registered with the state. That means you’ll need to submit paperwork and pay a fee before you can build your gun. Other states have similar laws, so it’s important to check the rules in your area before you start your project.
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There are several reasons why someone might want an 80% lower receiver:
1. One reason is price. Unfinished receivers are typically cheaper than completed ones because you’re not paying for somebody else to do the work for you. This also allows you more control over the final product and lets you choose your finishes and coatings.
2. Another reason is compatibility. If you have an AR-15 that uses a different type of lower receiver, an 80 lower receiver can let you use those same parts on a new build. This is especially useful if you have aftermarket parts or accessories that you want to keep using.
3. Lastly, 80% lower receivers are legal in most states. There are a few states with restrictions, but in general, as long as you follow the NFA rules for building a firearm, you should be good to go.
So, why would someone want an 80% lower receiver?
1. One advantage is that since they’re not considered firearms, they can be purchased without going through a background check or FFL (Federal Firearm License) holder.
2. They’re also usually cheaper than buying a complete firearm receiver.
3. Since they ship in an unassembled state, they can be sold and shipped to most states without any extra regulations.
However, there are some disadvantages to building your firearm receiver.
1. It’s illegal to build a gun to sell it, so you can only build one for personal use.
2. If you live in a state with strict gun laws, it may not be legal to build or possess an 80% lower receiver.
3. And finally, machining an 80% lower receiver requires specialized equipment and knowledge, so unless you’re confident in your abilities, it’s probably best to leave it to the professionals.
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