Constructed of durable blued steel, a steel internal spring, and a flush-fitting baseplate, this Mini-14 magazine was designed to withstand and operate in even the most extreme conditions. Designed in collaboration with the U.S. Army Marksmanship Unit, the 6.8mm SPC brings a new level of accuracy and stopping power to the Mini-14. These 5-round factory replacement magazines ensure optimum fit and function with your Mini-14 6.8 SPC rifle.