Welcome to GunBuilders! We are here to help you build the perfect AR-15 using only the highest quality American-made parts. Whether you’re an experienced gun enthusiast looking to customize your firearm or a beginner wanting to build your first AR-15, we have the knowledge and expertise to guide you through the process. Our goal is to provide you with the best possible parts and tools so that you can construct the AR-15 of your dreams. With our help, you’ll be able to create a one-of-a-kind weapon that is sure to turn heads. So let’s get started!
The Lower Receiver
When GunBuilders are constructing an AR 15, the lower receiver is one of the most important parts of the rifle. It serves as the foundation for all of the other parts and is responsible for attaching the upper receiver, barrel, magazine, and stock. The lower receiver houses all of the major components, so it is important to choose one that is well-made and built to last.
When choosing a lower receiver for your AR 15 build, you want to look for one that is made from quality materials. Quality AR 15 lower receivers are typically made from aluminum or polymer. Aluminum lower receivers are stronger and more durable, making them ideal for competition shooting and tactical use. Polymer lower receivers are lighter and more affordable, but they may not be as strong as aluminum.
Another important consideration when choosing an AR 15 lower receiver is whether it is forged or billet. Forged lower receivers are made by hammering a single piece of metal into shape, while billet receivers are machined from multiple pieces of metal. Forged lower receivers tend to be stronger and more durable than billet receivers. They are also typically less expensive than billet receivers, making them a popular choice for budget builds.
For GunBuilders looking to complete an AR 15 build with American-made parts, there are several great manufacturers that make high-quality lower receivers in the United States. Seekins Precision, Aero Precision, and Anderson Manufacturing are just a few of the companies that make excellent AR 15 lower receivers using domestic materials.
No matter which type of AR 15 lower receiver you choose for your build, make sure it is made from quality materials and is compatible with all of your other parts. A quality lower receiver is an essential part of any GunBuilders AR 15 build, so don’t skimp on quality!
The Upper Receiver
The upper receiver is one of the most important AR 15 parts for any AR 15 build. It’s the main body of the rifle that holds all the other parts together. The upper receiver will also determine which caliber and type of barrel can be used.
When choosing an upper receiver, it’s important to pick one made of durable material, such as billet aluminum or forged steel. American-made receivers are held to very high standards, ensuring that they will last through heavy use and many years.
You can also choose to go with a complete upper receiver, which includes the barrel, gas tube, charging handle, handguard, sights, and other components. It’s a great way to save time and money, as you don’t have to buy each part separately.
Finally, you’ll need to make sure your upper receiver has the correct port size. This is usually determined by the size of the barrel you intend to use. A standard .223 or 5.56 upper will have a .750 diameter port size, while a .308 or 6.5 Creedmoor upper will have a .936 diameter port size.
No matter what type of upper receiver you choose for your build, be sure to choose a quality American-made product that will stand up to years of use. With the right upper receiver in place, you can rest assured that your rifle will perform reliably and accurately for years to come.