American Made AR-15 Parts – The Ultimate Guide to Building the Perfect Rifle

The AR-15 is one of the most popular rifles in the United States and a favorite among gun enthusiasts and first-time shooters alike. But when it comes to building the perfect AR-15, you want only the best parts that are made right here in the United States. Finding the right AR 15 parts to build the perfect rifle can be a daunting task, but this guide will provide you with all the information you need to make the perfect selection of American-made AR-15 parts for your rifle.

Table of Contents

Upper Receiver

The upper receiver of an AR-15 is the most important part when building a rifle. It houses the bolt carrier group, barrel and other components necessary to make a complete gun. At GunBuilders, we only use American made AR 15 parts for our customers, so you know that you’re getting quality components for your build.

The upper receiver of an AR-15 comes in two main styles: the flat top and the carry handle. The flat top is the most popular option because it allows for the addition of optics and other accessories like lights or lasers. The carry handle style is ideal for shooters who want a more traditional look.

When selecting an upper receiver for your build, you’ll want to make sure that it is compatible with the barrel you’ve selected. Different barrel configurations require different upper receivers. The barrel length, diameter and twist rate should all be taken into consideration when choosing an upper receiver.

At GunBuilders, we carry only top quality American-made upper receivers that are designed to provide you with the best performance possible. With our help, you can create the perfect AR-15 build that meets your needs and exceeds your expectations.

Lower Receiver

When it comes to building your own AR-15, the lower receiver is the foundation of the rifle. It houses the trigger, hammer, and other important parts, so it’s essential to choose quality parts that will stand the test of time. Thankfully, GunBuilders has a large selection of American-made lower receivers for you to choose from.

An important factor when considering which lower receiver to choose is the material. Typically, lower receivers are made of aluminum or polymer. Aluminum is a stronger, more durable option and usually provides more reliable performance over time. However, polymer is lighter and easier to customize.

The type of platform is also important. You can choose either a standard AR-15 platform or an AR-10 platform. A standard AR-15 platform uses .223 Remington or 5.56x45mm NATO cartridges and is suitable for most shooters. An AR-10 platform accepts .308 Winchester or 7.62x51mm NATO cartridges and is generally more suitable for hunting and target shooting.

Another important factor to consider is the finish of the lower receiver. Most manufacturers offer a variety of finishes such as anodized, cerakote, and even custom paint jobs. While the color and design are ultimately up to your personal preference, it’s important to consider how much wear and tear you expect the receiver to experience before deciding on a finish.

At GunBuilders, we have an extensive selection of American-made lower receivers for you to choose from. Whether you’re looking for a lightweight polymer option or a strong aluminum platform, we have what you need to build the perfect AR 15.


The barrel of your AR-15 is one of the most important AR 15 parts to consider when building the perfect rifle. The barrel is what determines the accuracy of your rifle and its effective range. The length of your barrel also affects the velocity of your rounds, as longer barrels typically have higher velocities than shorter barrels. Additionally, the twist rate of your barrel determines which type of ammunition it can safely fire.

When selecting the perfect barrel for your AR-15, you’ll want to consider a few factors such as the length of the barrel, the material it’s made of, and its twist rate. Many AR-15s are built with a 16” barrel, but if you’re looking for greater accuracy, then consider a longer barrel such as 18” or 20”. The materials used to make AR-15 barrels are either chrome moly steel or stainless steel. Chrome moly steel is lightweight and durable while stainless steel is more resistant to corrosion. Finally, twist rate determines the type of ammunition your rifle can safely fire.

By Tate

I am a professional writer and blogger. I’m researching and writing about innovation, Blockchain, technology, business, and the latest Blockchain marketing trends.

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