Spike’s Tactical STLS031 Viking, Stripped Lower, 223 Remington/5.56 NATO, Black

Product Description

The Spike’s Tactical STLS031 Viking stripped lower receiver is the ideal starting point for building your own .223 Remington/5.56 NATO AR-platform rifle. This semi-automatic lower is precision-machined to exacting standards and serves as the regulated receiver component for your custom build. Whether you’re a first-time builder or an experienced gunsmith, the STLS031 provides a solid foundation for your next sporting or recreational shooting project.

Additionally, a stripped lower gives you complete control over your rifle’s configuration. You select every component—trigger, stock, grip, and fire control group—to match your specific needs and preferences. This level of customization is one of the primary reasons builders choose stripped lowers over complete rifles.

Build Flexibility and Quality Construction

Furthermore, the Spike’s Tactical STLS031 is manufactured to strict tolerances that ensure reliable function and long-term durability. The black finish resists corrosion and provides a clean, professional appearance. As a stripped lower, it requires assembly of internal and external components, making it perfect for hobbyists and competitive shooters who want hands-on involvement in their firearm.

The .223 Remington/5.56 NATO caliber is the most versatile and cost-effective choice for AR-platform rifles. Additionally, ammunition availability and affordability make this chambering ideal for range training, target shooting, and recreational use. Whether you’re zeroing optics, running drills, or simply enjoying time at the range, the STLS031 delivers the performance you expect.

Perfect for the AR Builder

Moreover, choosing a quality stripped lower like the Spike’s Tactical STLS031 Viking ensures your custom build starts on solid ground. You avoid compatibility issues and inferior construction. Additionally, the semi-automatic configuration complies with all federal regulations, giving you peace of mind throughout your build process.

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 do I need to complete the Spike’s Tactical STLS031 Viking build?

A: You will need a lower parts kit, upper receiver, barrel, bolt carrier group, charging handle, and furniture (stock, grip, handguard). The stripped lower is the starting point; every other component is your choice, allowing complete customization based on your intended use and budget.

Q: Is the STLS031 compatible with standard AR-15 parts?

A: Yes, the Spike’s Tactical STLS031 is a standard AR-15 platform lower receiver chambered in .223 Remington/5.56 NATO. It accepts all quality AR-15 parts and components, giving you maximum flexibility when sourcing your build.

Q: Do I need an FFL transfer for a stripped lower in Texas?

A: Yes, federal law requires that stripped lowers be transferred through a licensed FFL dealer.

Q: What is the best use for a custom .223 Remington build?

A: The .223 Remington/5.56 NATO is ideal for target shooting, range training, and recreational use. Its accuracy, mild recoil, and ammunition availability make it one of the most popular choices for AR builders and shooters of all skill levels.

Additional information