The Guide to AR-15 Bolt Carrier Groups

Posted by 80-Lower.com on Dec 10th 2019

The bolt carrier group (BCG) is one of the most important moving parts in the AR-15. It takes the brunt of the recoil produced by the gas system while reliably cycling and ejecting ammunition. This builder's guide explains the operation and individual components of the AR-15 bolt carrier group. 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.

Officer vs Commander vs Government 1911 Frames

Posted by 80-Lower.com on Nov 6th 2019

Building or modifying your 1911? This guide explains the three variants of this legendary handgun in relation to frame size: The full-size Government, the compact Commander, and the subcompact Officer. The Original 1911: Government (5") ModelThe aptly-named Government 1911 profile is the ori …

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.

300 Blackout vs. 300 Whisper

Posted by 80-Lower.com on Nov 2nd 2019

Just as the differences between .223 and 5.56 NATO are hotly debated and shrouded in misinformation, the same applies to the world of the .300 family. The new and popular 300 Blackout round was officially developed by the Advanced Armament at the request of the U.S. Military, but the story of the 30 …

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.

300 Blackout vs. 5.56/.223 vs. 308 Win

Posted by 80-Lower.com on Oct 28th 2019

You want to build a black rifle, but you're not sure which caliber to go with. Maybe you just want to know the differences between the three most popular calibers the AR-15 can easily chamber: 300 Blackout, 5.56 NATO or .223 Remington, and .308 Winchester (technically called an "AR-10" or "AR-308 …

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.

300 Blackout vs. Body Armor and Bulletproof Glass

Posted by 80-Lower.com on Oct 25th 2019

Every time a new “gee whizz” rifle cartridge comes out, the curiosities about it can do begin to mount. One of the template questions is, “can it penetrate body armor”? While this curiosity is a novelty for most, 300 BLK serves its purpose among military folks and operators, so it’s worthy of analys …

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 5.56 NATO Ammo Guide (X/M855 vs. X/M193)

Posted by 80-Lower.com on Sep 19th 2019

M855. SS109. XM193... "Green" tips? What does it all mean?! In this guide, we're breaking down everything you want to know about good ole' 5.56 NATO, the round most used by the military and the AR-15 market. Let's figure out what all these different 5.56 rounds do, what their names me …

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.

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