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80-Lower.com Statement Regarding ATF Rule 2021R-05F, “Definition of ‘Frame or Receiver’ and Identification of Firearms"

80-Lower.com Statement Regarding ATF Rule 2021R-05F, “Definition of ‘Frame or Receiver’ and Identification of Firearms"

Posted by 80-Lower.com on Apr 12th 2022

Updated April 26, 2022 BREAKING: ATF FINAL RULE 2021R-05F was published on April 26th. This rule will go into effect  on August 24, 2022. See published version here. Updated April 25, 2022 BREAKING: ATF FINAL RULE 2021R-05F scheduled to be published on April 26th.  This rul …

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 Cut, Drill, and Finish a P80 Frame

How to Cut, Drill, and Finish a P80 Frame

Posted by 80-Lower.com on Feb 25th 2022

Welcome to our two-part series on how to build a Polymer80 (GLOCK-compatible) handgun! We're going to cover: Frame compatibility - which should you pick? Parts and tools you need to build your pistol. The steps required to fabricate the frame. Finally, the steps required to assemble i …

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.


FINAL RULE 2021R-05F ANNOUNCED APRIL 11, 2022 - ACT NOW!

FINAL RULE 2021R-05F ANNOUNCED APRIL 11, 2022 - ACT NOW!

Posted by 80-Lower.com on Feb 4th 2022

Update 4/11/22 The White House issued a press release before the 2:15 PM ET announcement today about ATF Rule 2021-05.  The final rule can be found here.  We are currently analyzing the differences between this final rule and the previously proposed rule.  Stay t …

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.


Reflex & Red Dot vs. Holographic Optics Explained

Reflex & Red Dot vs. Holographic Optics Explained

Posted by 80-Lower.com on Nov 10th 2021

Red dots, holographics, ACOGs, Aimpoints, what does it all mean?! Today, we're going to clear up the misconceptions and mysteries about red dot optics. Let's clear up what types of red dots there are. Then we'll compare how each type works, and its pros and cons. Lastly, we'll dispel some myths 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.


Muzzle Brakes vs. Flash Hiders vs. Compensators

Muzzle Brakes vs. Flash Hiders vs. Compensators

Posted by 80-Lower.com on Nov 10th 2021

Muzzle devices! There are lots of 'em. You've got muzzle brakes, and flash hiders, and compensators, and suppressor. What's the difference between all of these? What's a pinned and welded flash hider? Which device should I get? Let's answer all the questions and compare muzzle brakes vs. flash …

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.


The Guide to Sig P320 Grip Modules

The Guide to Sig P320 Grip Modules

Posted by 80-Lower.com on Nov 4th 2021

If you've read our P320 Build Guide, then you're probably wondering how to easily convert your newly built Sig Sauer pistol between its various sizes, barrel lengths, and calibers. That's accomplished by swapping the P320's fire control unit -- the part legally considered the firearm itself -- in …

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.