San Tan Tactical STT-15 Billet AR-15 Lower Receiver

Built with American pride and precision engineering, the San Tan Tactical STT-15 Billet Lower Receiver is a premium foundation for your next AR-15 build. Machined from high-quality American-made materials using state-of-the-art CNC equipment, the STT-15 delivers the tight tolerances and refined fit you expect from a true billet lower — setting it apart from standard mil-spec castings. Whether you’re completing a competition rifle, a hunting build, or a custom home project, the STT-15 offers the quality and craftsmanship to anchor a build you’ll be proud to shoot. At Deep Roots Rifle Co, we carry a strong selection of AR-15 components and can help you take your build further. Order online with fast shipping nationwide, or stop by our gun store in Eustis, Florida to speak with our knowledgeable staff about completing your custom AR-15 build from the ground up.