Learn More about the AR-15 Lower Receiver
AR-15 Lower Receiver: The Backbone of the Rifle
The AR-15 lower receiver is a key part of the rifle. It serves as the base for the entire firearm. It’s essential for both function and customization. Here’s what you need to know about it and why it matters.
Function
The lower receiver is where the action happens. It holds the trigger and hammer, known as the fire control group. This is what makes the rifle fire. It also includes the safety, magazine well, and stock and buffer tube connection points.
Without the lower receiver, the rifle cannot work. It is the foundation for the AR-15's operation. High-quality lowers ensure all parts fit together and run smoothly.
Legal Status
The lower receiver is legally considered the firearm itself. In the U.S., this means it has a serial number and must be purchased through a licensed dealer. Buying a lower requires a background check, even if it is just a stripped lower.
A stripped lower has no internal parts installed. On the other hand, a complete lower is fully assembled and ready to use. Once you buy the lower, the other parts of the AR-15 can be purchased without restrictions.
Modularity
The AR-15 is famous for its modular design. The lower receiver makes this possible. It works with many different parts and calibers.
With one lower, you can create multiple setups. For example, you can use one upper for hunting and another for target shooting. You can also switch between calibers like .223 Remington, .300 Blackout, and more.
This flexibility allows the AR-15 to adapt to many tasks. It’s great for hunting, sport shooting, and self-defense.
Affordability
Lower receivers are affordable. Stripped lowers can cost as little as $50. Complete lowers are more expensive but still cost less than a full rifle. Most complete lowers range from $200 to $400.
Starting with a stripped lower is a good way to save money. You can add parts over time, and even high-end lowers are less expensive than buying another complete rifle.
Why It Matters
The AR-15 lower receiver is the rifle's foundation. It holds important parts, determines the firearm's legal status, and allows for endless customization.
Whether you’re building your first rifle or adding to your collection, the lower receiver is essential. Its affordability and modularity make it a smart choice. The AR-15 wouldn’t be as popular as it is today without this versatile component.