Radical Firearms RF-15, 223 Remington/5.56 NATO, Black, Stripped Lower Receiver

Product Description

The Radical Firearms RF-15 stripped lower receiver in .223 Remington gives you the foundation to build your own semi-automatic rifle. This is the serialized, regulated component that defines your firearm legally. As a stripped lower, it arrives without trigger group, stock, or controls—giving you total freedom to customize your build exactly how you want it.

Additionally, the RF-15 features a hardened anodized black finish for durability and corrosion resistance. This protective coating ensures your lower receiver withstands heavy use during range sessions and recreational shooting. The precision machining meets Radical Firearms’ exacting standards for fit and reliability.

Perfect for Custom Builds

Whether you’re building your first AR platform rifle or your tenth, the RF-15 stripped lower is your starting point. Semi-automatic operation in .223 Remington makes it ideal for target shooting, sport competitions, and general recreational use. You’ll pair it with your choice of upper receiver, trigger, stock, and handguard to create a rifle that matches your shooting style.

Furthermore, builders love stripped lowers because they control every component. From ergonomics to performance, your build reflects your vision. The RF-15 gives you a reliable, quality base to work from without the limitations of a complete rifle.

Quality and Reliability

Radical Firearms has built a reputation for precision manufacturing and attention to detail. The RF-15 stripped lower maintains those standards at a competitive price point. When you order this lower, you’re investing in a component that will last through years of shooting and countless custom configurations.

Ordering from Western Sport

Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.

Frequently Asked Questions

Q: What is a stripped lower receiver and how do I use it?

A: A stripped lower receiver is the serialized, legally-regulated part of an AR-platform rifle with no trigger group, stock, buffer tube, or controls attached. You’ll complete it by adding your choice of upper receiver, trigger assembly, stock, and other components to build a rifle customized to your specifications.

Q: Is the Radical Firearms RF-15 compatible with standard AR-15 parts?

A: Yes, the RF-15 stripped lower is built to standard AR-15 specifications and accepts all common AR-15 components and accessories. This means you have unlimited options for customizing your build to match your shooting needs and preferences.

Q: How does shipping work for this stripped lower receiver?

A: Order online through Western Sport, and we’ll ship the RF-15 to your local FFL dealer. Your FFL will conduct the required background check before you take possession.

Q: What is the Radical Firearms RF-15 best used for?

A: The RF-15 in .223 Remington is ideal for target shooting, sport competitions, hunting, and recreational range use. Its versatile platform lets you customize it for your exact shooting application, whether that’s precision shooting, rapid-fire training, or casual plinking.

Additional information