Optimize your shooting experience with the ProMag Industries SPR-A1 15-Round Steel Magazine, engineered for reliability and performance. Crafted in the U.S.A., this magazine features rugged construction that ensures durability and longevity. Every ProMag magazine guarantees precision with heat-treated chrome silicon wire springs, offering smooth operation and easy loading. Quality checks throughout the assembly process guarantee consistent excellence. 15 - Round Capacity Steel Construction Heat-Treated Chrome Silicon Wire Spring Manufactured & Assembled in the U.S.A. Easy Loading Rugged Construction Equip your firearm with confidence and benefit from a lifetime guarantee against manufacturer defects.