Lower Receivers


Lower Receivers for sale

Discover a wide variety of complete or stripped lower receivers at DEGuns, your source for building AR-15 and AR-10 rifles. Find complete lowers with mil-spec bolt carrier groups, drop in triggers, and buttstocks that add creativity and purpose to your firearm build. Shop by complete or stripped receiver categories.




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Understanding Lower Receivers for Rifles: Complete vs. Stripped

In the world of firearms, the lower receiver of a rifle is a crucial component that plays a pivotal role in firearm functionality and customization. Whether you're a seasoned gun enthusiast or a newcomer to the world of firearms, understanding lower receivers is essential for building, customizing, or even just maintaining a rifle. In this comprehensive guide, we will delve into the intricacies of lower receivers, exploring their construction, purposes, and the key differences between complete and stripped lower receivers.

What is a Lower Receiver?

The lower receiver of a rifle is the part of the firearm that houses critical components such as the trigger group, magazine well, and the mechanism responsible for the weapon's semi-automatic or automatic firing function. In essence, it serves as the foundation upon which the rest of the firearm is built. Lower receivers are primarily associated with AR-15-style rifles and similar firearms, which have become popular due to their modularity and adaptability for various purposes.

Anatomy of a Lower Receiver

A typical lower receiver consists of several key components:

1. Fire Control Group: This includes the trigger, hammer, and disconnector. These components work together to release the firing pin, allowing the rifle to fire when the trigger is pulled.

2. Magazine Well: The magazine well is where the firearm's ammunition magazine is inserted. It ensures proper alignment and feeding of rounds into the chamber.

3. Pistol Grip: The pistol grip is the part of the lower receiver that the shooter holds onto. It provides a comfortable and ergonomic grip, contributing to accurate shooting.

4. Buffer Tube: The buffer tube houses the recoil buffer and spring, which manage the recoil energy generated when a round is fired. This component is crucial for the rifle's cycling and reliability.

5. Stock Attachment Point: This is where the rifle's stock or buffer tube assembly is attached. The stock or brace provides support and stability while aiming and firing.

6. Safety Selector: The safety selector allows the shooter to switch between safe, semi-automatic, and, in some cases, fully automatic firing modes.

7. Bolt Catch: The bolt catch holds the bolt carrier group open after the last round is fired, indicating that the magazine is empty.

Complete Lower Receiver

A complete lower receiver is a lower receiver assembly that comes with all the necessary components pre-installed. This includes the fire control group, pistol grip, buffer tube, stock or brace, and often the safety selector and magazine release. Essentially, a complete lower receiver is ready to be attached to an upper receiver, which contains the barrel, bolt carrier group, and other essential parts, to form a fully functional rifle.

Stripped Lower Receiver

In contrast, a stripped lower receiver is essentially an empty lower receiver shell. It lacks several key components, including the fire control group, buffer tube, and stock or brace. The stripped lower receiver provides a blank canvas for firearm enthusiasts and builders to customize their rifles to their specific preferences and needs.

Differences Between Complete and Stripped Lower Receivers

To better understand when to purchase a complete lower receiver versus a stripped lower receiver, it's essential to examine the differences between the two:

Ease of Assembly

- Complete Lower Receiver: Offers the advantage of convenience and simplicity. It requires minimal assembly, as most critical components are pre-installed. This is an excellent choice for those who want a ready-to-shoot firearm without the hassle of sourcing and installing individual parts.

- Stripped Lower Receiver: Requires more effort and knowledge to assemble, as it involves selecting and installing various components. This option appeals to individuals who enjoy customizing their firearms or those seeking a unique build.


- Complete Lower Receiver: While complete lower receivers offer some level of customization, they often come with pre-selected components, limiting the degree of personalization. However, you can still swap out certain parts like the pistol grip or stock to tailor the firearm to your preferences.

- Stripped Lower Receiver: Provides complete control over component selection, allowing builders to choose every part according to their specific requirements. This option is ideal for those who want to create a firearm optimized for a particular purpose, such as precision shooting, competition, or personal defense.


- Complete Lower Receiver: Typically, complete lower receivers are more expensive upfront, as they include pre-installed components. However, they can save money in the long run, as purchasing individual parts can add up quickly.

- Stripped Lower Receiver: Generally, stripped lower receivers are more budget-friendly initially. However, the overall cost can vary widely depending on the quality and type of components you choose to install. Building a stripped lower receiver can be cost-effective if you carefully select components based on your budget and needs.

Legal Considerations

- Complete Lower Receiver: In some regions, complete lower receivers may be subject to stricter regulations or background checks, as they are considered a firearm's serialized part. Always check your local and federal laws when purchasing complete lower receivers.

- Stripped Lower Receiver: In many areas, stripped lower receivers are treated differently from complete receivers, as they lack essential components to function as firearms. This may result in fewer legal restrictions during purchase.

When to Choose a Stripped Lower Receiver vs. a Complete Lower Receiver

To determine whether a stripped or complete lower receiver is the right choice for your needs, consider the following scenarios:

For Novice Firearm Enthusiasts

- If you are new to firearms and lack experience in assembly and customization, a complete lower receiver is a more straightforward option. It allows you to acquire a functional firearm without the complexity of assembly.

For Experienced Builders and Enthusiasts

- If you have prior experience with firearms and enjoy the process of building and customizing, a stripped lower receiver is an excellent choice. It offers full control over component selection and customization.

For Specific Needs

- If you have a specific purpose in mind for your rifle, such as competitive shooting, hunting, or self-defense, a stripped lower receiver allows you to tailor the firearm to your exact requirements, optimizing performance and features.

For Budget-Conscious Buyers

- If you are on a tight budget, a stripped lower receiver can be a cost-effective choice, as you can gradually purchase and install components as your finances allow.

Lower receivers for rifles are the foundation of firearms, and understanding the differences between complete and stripped lower receivers is essential for firearm enthusiasts and builders.

Whether you choose a complete lower receiver for convenience or a stripped lower receiver for customization, your decision should align with your experience level, specific needs, budget, and legal considerations.

With the right lower receiver and components, you can create a firearm that suits your preferences and serves your intended purpose effectively. Shop DEGun wide selection to find the right receiver for your needs.