The Barrett MRAD / MK 22 / MRAD-SMR 10-round "B" Stainless-Spring Magazine Assembly is a detachable box magazine engineered for rifles using the MRAD-series "B-type" magazine interface. Designed to accommodate cartridges such as .300 PRC, .300 Winchester, and 7mm PRC, this magazine features a stainless-steel spring to ensure consistent feeding and reliable performance. With a 10-round capacity, the magazine offers standard operational capacity suitable for precision rifle builds. Intended for use with MRAD-family rifles configured for the specified calibers, this magazine assembly serves as a durable, drop-in-style feeding component for shooters seeking a dedicated magazine for those chamberings. Barrett MRAD/MK 22 MRAD/SMR 10rd "B" Stainless Spring .300 PRC, .300 Win, 7mm PRC Magazine Assembly 19735