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80 Lower Blog

Reflex & Red Dot vs. Holographic Optics Explained

Reflex & Red Dot vs. Holographic Optics Explained

Posted by 80-Lower.com on Sep 1st 2022

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.


The AR9 Pistol Guide: How to Build a 9mm AR

The AR9 Pistol Guide: How to Build a 9mm AR

Posted by 80-Lower.com on Sep 1st 2022

This is your ultimate AR9 pistol guide! We’re breaking down everything you need to know to build one yourself: What the AR9 pistol is, what separates it from an AR-15, parts compatibility, 9mm Parabellum's ballistics, buffer weight, barrel length, twist rate, and magazines. All data and re …

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 300 Blackout AR-15 Build Guide

The 300 Blackout AR-15 Build Guide

Posted by 80-Lower.com on Aug 31st 2022

300 Blackout is an impressive cartridge: It can be fired suppressed or un-suppressed, subsonic or supersonic, with no modification to the rifle or pistol that's firing it. But to make sure your 300 BLK-chambered AR can shoot both supers and subs with good accuracy and reliable cycling, you've got …

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 Install the AR-15 Lower Parts Kit

How to Install the AR-15 Lower Parts Kit

Posted by 80-Lower.com on Aug 24th 2022

Installing the lower parts kit in your AR-15's lower receiver should take less than two hours for first-time builders. This guide will illustrate how to perform each assembly and install step with pictures and written instructions. We strongly recommend finding the right tools before you get star …

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 Duracoat Camouflage an AR-15

How to Duracoat Camouflage an AR-15

Posted by 80-Lower.com on Aug 3rd 2021

You bought or built a shiny new AR-15. Congratulations! But it looks just like every other AR out there. What do you do? You paint it. But how? Easy: We're going to show you how to use Duracoat - a popular gun coating that now comes in a rattle can - and some simple vinyl stencils to produce your …

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 Zero a Red Dot Sight

How to Zero a Red Dot Sight

Posted by 80-Lower.com on Jul 29th 2021

Just bought a red dot sight? You must zero the reticle so your point of aim (POA) matches your bullet's point of impact (POI). When you install your new red dot, chances are POA will not match POI. Your rounds may land low and left, high and right, or any combination thereof. Getting POA to ma …

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.