TacFire SSBU55610 5.56 NATO Black Nitride Upper Assembly

Build or upgrade your AR-15 with the TacFire SSBU55610 5.56 NATO Upper Assembly, finished in a durable black nitride coating for enhanced corrosion resistance and long-lasting performance. Designed for reliability and compatibility with standard AR-15 lower receivers, this upper assembly is an excellent choice for shooters looking to improve or complete their build without breaking the bank.

The black nitride finish provides superior hardness and lubricity compared to traditional finishes, helping reduce wear and simplify maintenance — even under demanding range conditions. Whether you’re a first-time AR builder, a seasoned competitor, or a home-defense enthusiast, the TacFire SSBU55610 delivers solid performance and value in the popular 5.56 NATO chambering.

At Deep Roots Rifle Co, we stock a wide selection of upper assemblies and AR-15 components to support your next build. Our knowledgeable staff in Eustis, Florida is ready to help you find the right parts and answer your questions. Order online for fast shipping nationwide, or stop by our local gun store and let us help you put together the perfect firearm.