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80 Lower Blog

80% Frame Compatibility Guide

80% Frame Compatibility Guide

Posted by 80-Lower.com on Nov 17th 2022

The GLOCK® and 1911 handguns are perhaps two of the most popular firearms in America. It's no surprise 80% frames have been made for custom builds. This guide compares frame blank compatibility with handgun models, calibers, and parts.All P80 Frames Are "Gen 3" The Polymer80 line of frames are …

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.


80% Lower Compatibility Guide

80% Lower Compatibility Guide

Posted by 80-Lower.com on Nov 17th 2022

You're ready to become an at-home gunsmith and build an AR-15 from scratch. But which receiver blank should you buy?  This guide compares available AR-type 80% lowers, which calibers they work with, and other specifications you'll need to know before building. New here? Read "What is An …

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-15: The Ultimate Guide for Beginners

How to Build an AR-15: The Ultimate Guide for Beginners

Posted by 80-Lower.com on Nov 9th 2022

If you're a first-time AR-15 builder, all the info found online can feel overwhelming. This simple guide introduces the basics to building your own. We'll gives you links to in-depth guides for each part of the AR, so you can become a master of the the rifle one step at a time. What is The 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.


E-Filing ATF Form 1, Part 8: Filling Out FD-258 Fingerprint Cards

E-Filing ATF Form 1, Part 8: Filling Out FD-258 Fingerprint Cards

Posted by 80-Lower.com on Oct 27th 2022

Part 8: Fill Out & Mail Fingerprint Cards Intro: Making an Account on EForms Part 1: Starting the Form 1 application. Part 2: Payment and Applicant Info. Trusts: Responsible Persons Questionnaire. Part 3: Responsible Person(s) page. Part 4: Chief Law Enforcement Officer page. Part 5: L …

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.


E-Filing ATF Form 1, Part 7: Paying and Submitting Application

E-Filing ATF Form 1, Part 7: Paying and Submitting Application

Posted by 80-Lower.com on Oct 27th 2022

Part 7: Paying and Submitting ApplicationIntro: Making an Account on EFormsPart 1: Starting the Form 1 application.Part 2: Payment and Applicant Info.Trusts: Responsible Persons Questionnaire.Part 3: Responsible Person(s) page.Part 4: Chief Law Enforcement Officer page.Part 5: Line Item page (adding …

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.


E-Filing ATF Form 1, Part 6: Electronic Documents Page

E-Filing ATF Form 1, Part 6: Electronic Documents Page

Posted by 80-Lower.com on Oct 27th 2022

Part 6: Upload Your Gun Trust (Individuals Skip) Intro: Making an Account on EForms Part 1: Starting the Form 1 application. Part 2: Payment and Applicant Info. Trusts: Responsible Persons Questionnaire. Part 3: Responsible Person(s) page. Part 4: Chief Law Enforcement Officer page. …

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.