This Patriot Ordnance Factory P-15 Base SMU is a semi-automatic rifle chambered in 300 Blackout with a 13.75-inch match-grade barrel and 30-round magazine capacity. It uses an aluminum receiver set, a slim M-LOK handguard, and an adjustable stock for adaptable handling. This configuration also includes a pinned and welded Dead Air muzzle brake to meet length requirements while managing muzzle movement. Designed for compact handling and accessory mounting, the P-15 Base SMU offers a modern AR-style layout built around Patriot Ordnance Factorys P-15 platform. The pinned and welded Dead Air brake provides an extended overall barrel length in a factory configuration.