The Barrett MRAD / MK22 MRAD / SMR 10-round "D" Stainless Spring Magazine Assembly is a heavy-duty, precision-engineered magazine built to support the larger, long-range calibers .338 Norma Magnum and .300 Norma Magnum. Crafted to meet Barrett’s rigorous military-grade standards, it incorporates a stainless-steel spring for smooth, reliable feeding and enhanced corrosion resistance in demanding field conditions. Designed for seamless compatibility with the MRAD and MK22 platforms, this 10-round "D" pattern magazine provides a secure fit, dependable performance, and the rugged durability required by precision marksmen and professional operators who rely on consistent ammunition delivery at extended ranges. Barrett MRAD/MK 22 MRAD/SMR 10rd "D" Stainless Spring .338 Norma Mag, .300 Norma Mag Magazine Assembly 19737