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80 Lower Blog

Commercial vs. Mil-Spec Buffer Tubes

Commercial vs. Mil-Spec Buffer Tubes

Posted by 80-Lower.com on Mar 2nd 2021

You've heard the phrase way too many times now: "Mil-spec."  It's mostly a buzzword but it still plays a role in actual rifle and pistol specifications. Most notably, buffer tubes. They're officially called receiver extensions. But what's the difference between a commercial and mil-s …

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.


6.5 Creedmoor vs. 308 Winchester

6.5 Creedmoor vs. 308 Winchester

Posted by 80-Lower.com on Feb 24th 2021

6.5 Creedmoor has become a staple in the AR's niche-caliber community. While it first started as a match load for long-range shooting in typical bolt guns, it's earned favor as an alternative to the (what some call 'archaic') .308 Winchester that the AR platform was originally developed around. 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.


6.5 Grendel vs. 6.5 Creedmoor

6.5 Grendel vs. 6.5 Creedmoor

Posted by 80-Lower.com on Feb 16th 2021

The AR platform hosts loads of calibers. You're no longer stuck with old 5.56 NATO and .223 Remington, or .308 Winchester. Instead, new calibers in the 6.5mm range have allowed both the AR-15 and AR-10 (now sold as the LR-308) to outperform their respective ancestors. But what's the difference be …

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 Fly With a Firearm

How to Fly With a Firearm

Posted by 80-Lower.com on Feb 2nd 2021

Flying with your firearms is easier than you think. You simply need to ensure you're abiding by all state and federal laws, the rules the TSA provides, and their guidelines for properly storing and transporting your firearm through U.S. airports and on aircraft. Importantly, these guidelines …

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 Lower Parts Kit Compatibility & FAQ

AR Lower Parts Kit Compatibility & FAQ

Posted by 80-Lower.com on Jan 21st 2021

The AR platform can chamber dozens of calibers and be built in a plethora of configurations: Rifles, pistols, SBR's, pistol calibers, centerfire and rimfire rifle calibers, and more. But the biggest component of any AR build, the lower parts kit (and the 80% lower or stripped receiver it goes int …

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 6.5 Creedmoor AR Guide

The 6.5 Creedmoor AR Guide

Posted by 80-Lower.com on Dec 21st 2020

The AR-15's been chambering .22-caliber rounds (and its variants, .30-caliber) for decades. But recently, new calibers have been made available for the AR's .308 platform: The 6.5 Creedmoor round. What's the benefit? Is it worth going with 6.5mm over .308 Winchester? Let's get the big questions 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.


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.