AR-15 Rifle Kits

This is as close as you can get to buying a complete AR-15 while still getting to experience the pride and satisfaction of building it yourself.  If look close, you’ll see that the only thing missing from an AR-15 kit like this is the serialized lower receiver.  The bottom line is an AR-15 Rifle Kit is a comprehensive packages that provide everything you need to assemble a complete rifle, except for the lower receiver.

As you browse our selections, you’ll see AR-15 kits include upper receivers with or without barrels, handguards, gas systems, and other essential components. They are ideal for those looking to build a rifle from scratch or upgrade an existing one with precision-engineered parts that guarantee seamless compatibility and exceptional shooting performance.

By excluding the lower receiver, which is the regulated firearm component, these kits can often be shipped directly to your door, saving time and hassle. This approach allows builders to conveniently acquire all necessary parts in one package and focus on completing the legal firearm portion separately according to local laws and regulations.

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AR-15 Builder Sets

More simple and straightfoward than many of our other AR-15 kits, A Builders Set is a simple starting point for creating a personalized AR-15 rifle. As the popularity of building as risen, we are seeing more and more companies offering sets, usually consisting of an upper, lower, and a handguard.

As you browse our collection of builder’s sets, you’ll see that you will see that what you get when you purchase a builder’s set cohesive foundation to build your complete firearm around. This set includes the parts that set the visual tone for your build, ensuring both visual and functional harmony throughout your rifle. On many sets, you will even find matching colors and special patterns not available if you purchased upper, lower and handguard seperately.

Available in forged or billet aluminum, these sets allow you to choose the style and features that best suit your preferences and shooting needs. Builders sets simplify the assembly process and provide a solid base for customization, whether you prioritize aesthetics, functionality, or both.

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AR-15 Lower Parts Kits

Because your weapon is the sum of all its parts, the weakest link always stands out, no matter how tiny that link might appear to an outsider. Though many of the parts included in these kits seem small, their impact is large on the overall feel of your AR. The AR-15 Lower Parts Kit (LPK) is a cornerstone for assembling or customizing the lower receiver of your AR-15 rifle or pistol.
Our LPKs include all essential components such as trigger assemblies (including trigger, disconnector, and hammer), safety selectors, pistol grips with necessary hardware, magazine catch assemblies, bolt catch assemblies, and takedown and pivot pins. These kits ensure smooth operation and precise control, essential for both recreational shooting and tactical applications.
Please note that LPKs do not typically include the lower receiver itself or components like the buffer tube, buffer, buffer spring, or stock, which are purchased separately to suit your specific build requirements.
You can see some of our buffer/reciever extention kits here.

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AR-15 Upper Parts Kits

An AR-15 Upper Parts Kit encompasses vital components that complete the upper receiver assembly of your firearm. Included are components like the forward assist assembly, consisting of a button, spring, and roll pin, designed to assist in chambering rounds under adverse conditions. The ejection port cover assembly, featuring a cover, spring, and hinge pin, protects the chamber from dust and debris, ensuring reliable operation. These kits are crucial for enhancing the functionality and longevity of your AR-15, providing peace of mind during intensive shooting sessions or adverse environmental conditions.  While these items are sold as kits, this is an area where you can feel free to customize, as there are some great companies out there doing great things with these parts…see our line of Forward Controls Design parts as an example of how simple items like a forward assist or dust cover can be elevated to a higher level.

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AR-15 Lower Build Kits

If you’re new to building an AR, the lower can be somewhat of a challenge.  It can get confusing to know exactly what you need, and it’s all too easy to accidentally forget a small but necessary part.  Our OEM 5.56/.223 Lower Build Kits are designed to simplify the assembly of the lower receiver, offering all essential components required for a complete build. These kits typically include bolt catch assemblies, trigger assemblies (including trigger, trigger pin, and trigger spring), buffer retainer and spring, magazine catch assemblies, and comprehensive stock kits.

In some kits, you’ll find the convenient inclusion of an A2-style pistol grip and an M4-style collapsible stock with a mil-spec carbine receiver extension and buffer kit ensures compatibility across various AR-15 configurations. Whether you’re assembling your first rifle or upgrading an existing one, Lower Build Kits from AR15Discounts.com provide convenience, confidence and the foundation for a reliable and customizable firearm tailored to your shooting needs.

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AR-15 Receiver Sets

AR Receiver Sets from AR15 Discounts provide a simple foundational pairing of upper and lower receivers essential for assembling a complete AR-15 rifle or pistol, much like Builders Sets. These sets ensure both visual cohesion and functional compatibility throughout your firearm build. If you’re concerned about reciever slop, or a loose fit between upper and lower, you can mitigate the risk when you purchase an upper and lower receiver set from the same manufacturer.

Forged receivers, which are generally more popular, are crafted by hammering and pressing aluminum into shape under high pressure. This process results in a strong and durable product that is cost-effective to produce in large quantities, appealing to both budget-conscious builders and manufacturers aiming for mass production.

In contrast, billet receivers are machined from a solid block of aluminum, allowing for more intricate designs and customization options.

Whether you prioritize durability and cost-effectiveness with forged receivers or seek customization and aesthetic appeal with billet receivers, both types offer reliable performance and serve well in various shooting applications.

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AR-15 Upper Combo Kits

Each AR-15 Upper Combo Kit includes essential components such as the upper receiver, barrel, handguard, and more, all precision-engineered to work together flawlessly. This cohesive approach not only saves time but also guarantees that each part contributes to the overall performance and accuracy of your AR-15.

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AR-15 Cleaning Kits

For enthusiasts who demand the best, our cleaning kit for AR-15 ensures that your rifle maintains peak performance after each use. These kits are not just about cleaning; they are about preserving the precision and excellence of your firearm. Equip yourself with our AR-15 Cleaning Kits and experience a new standard of firearm maintenance, where every clean ensures a flawless performance on your next outing.

Popular AR-15 Cleaning Kits