Spike's Tactical STU5435-MLS 16" Upper Receiver 5.56 NATO

In the realm of firearms, precision and reliability are paramount. Spike's Tactical has long been a name synonymous with these virtues, offering products that deliver performance you can trust when it matters most. Their complete upper assemblies exemplify this commitment to excellence.

Each assembly is meticulously inspected and tested before it reaches your hands, ensuring it's ready to integrate seamlessly into your firearm setup without delay or concern. This rigorous process mirrors the same high standards of tolerance and attention to detail employed in their complete rifle builds.

At Spike's facility, every built upper undergoes a comprehensive function check through test firing. This critical step guarantees that each unit performs flawlessly under real-world conditions before making its way to you.

By choosing Spike's complete upper assemblies, you're investing in craftsmanship that's been proven time and again—a testament to an unwavering dedication to quality.