AT3 TACTICAL AR ACADEMY

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Must-Have Tools For AR-15 Builds


Looking for a good set of AR-15 tools for an upcoming build? You’re not alone. And AT3 is here to help. The AR-15 was innovative for a number of reasons, and chief among them was the concept of true modularity. While most guns of the era had hand-fitted parts (or at least required a gunsmith […]

How to Zero a Red Dot


In this article, we are going to cover how to zero a red dot optic. The first thing you’ll need to do is mount your optic. Check out our other article on Where to properly mount your Red Dot. What Does MOA mean on a Red Dot Sight? Before you start the zeroing process, it […]

How to Remove and Change a Dust Cover


Changing out your dust cover is a fairly simple and inexpensive way to add some character or a pop of color to your AR15. If you don’t know what you are doing, it can be a painful process though. Follow these simple steps to change out your dust cover. In this article, we will be […]

Understanding Headspace in an AR-15


 The AR-15 is designed to be modular. This means you should be able to take the barrel off of one and put it on another without having to do much physical manipulation of the materials. In fact, this was one of the genuine innovations of the platform. In a perfect world, this would be the […]

How To Paint An AR-15


Black rifles are called black rifles for a reason. They’re black. And while most of us have simply accepted the color as part of the platform, AR-15s don’t have to be black. So if you’ve ever thought about painting an AR-15, there are some good options out there. Why paint an AR-15? Let’s jump right […]

What is an 80% Lower vs a Stripped Lower?


This is a controversial topic, even though it shouldn’t be. To begin, let’s look at how the AR-15’s parts are named. The most basic distinctions are noted as the upper and lower–getting into stripped lowers and 80% lowers can add some confusion to the controversy. But we’re here to help clear things up. The upper […]