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80 Lower Blog

How The GLOCK's Safeties Work (and FAQ)

How The GLOCK's Safeties Work (and FAQ)

Posted by 80-Lower.com on Mar 12th 2024

The GLOCK® is arguably the most popular handgun on Earth. Tens of millions of GLOCKs have been issued to military and law enforcement worldwide and, by the numbers, it's the preferred handgun for civilians who want a reliable concealed-carry weapon. But the GLOCK® (and the Polymer80 pistols bas …

DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.


What is The Best 80 Percent Lower?

What is The Best 80 Percent Lower?

Posted by 80-Lower.com on Feb 28th 2024

"Which 80% lower is the best" Is a question we get asked frequently by AR-15 builders and new customers. The answer to that question depends on what type of AR you're building, and what tools you have access to. Of course, there is generally one overall best choice when it comes to putting together …

DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.


How to Build an AR Upper: Instructions & Photos

How to Build an AR Upper: Instructions & Photos

Posted by 80-Lower.com on Feb 13th 2024

Ready to assemble a barreled AR-15 upper receiver? Follow these instructions. We're assembling a 300 Blackout upper, but these instructions are identical for all standard AR-15 (5.56/.223), AR-10 (.308) and AR9 (9mm) uppers. Note that 9mm uppers do not need a gas system, so skip those steps.  …

DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.


AR-15 Pistol vs. SBR: What's The Difference?

AR-15 Pistol vs. SBR: What's The Difference?

Posted by 80-Lower.com on Jan 30th 2024

In the past years, AR-15 pistols have become increasingly popular. The reason why is simple: Buying or building a short-barreled rifle (SBR), is far costlier and requires extensive paperwork. But what, exactly, is an SBR? What's an AR pistol, and why choose one or the other? Let's compare.What is a …

DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.


FAQ's Regarding the August 8 Supreme Court Ruling on the Frame and Receiver Rule

FAQ's Regarding the August 8 Supreme Court Ruling on the Frame and Receiver Rule

Posted by 80-lower.com on Aug 10th 2023

Updated April 22, 2024What Did The ATF Do? On August 24, 2022, the ATF's Final Rule ( 2021R-05F), went into effect. This rule attempts to restrict the manufacturing, sale, and ownership of unfinished 80% lowers, 80% frames. Under this rule, 80-Lower.com and other, similar businesses are rest …

DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.


Judge Reverses ATF Restrictions on 80% Lowers and Frames

Judge Reverses ATF Restrictions on 80% Lowers and Frames

Posted by 80-Lower.com on Jul 5th 2023

LATEST LEGAL UPDATE:August 8, 2023Today, the victory against the ATF's "frame or receiver" rule has been put on hold by the Supreme Court. This means the rule will remain in effect while the government appeals the district court’s judgment that vacated it. The case will now continue at the F …

DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.


We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.