ProMag 40rds 9mm, Black

With the ProMag Extended Magazine, durability and reliability are never in question. Crafted from proprietary DuPont Zytel based polymer, this magazine is chemical resistant and extreme temperature tested, making it perfect for year round use in any environment. Inside, an injection molded polymer follower and heat-treated chrome silicon spring ensure proper round alignment and smooth, reliable feeding. Whether you're at the range or in the field, this magazine is built to perform. Magazine with a 40-round capacity Designed to fit Sig Sauer Sig MPX 9mm rifle The magazine body is constructed from a proprietary DuPont Zytel based polymer for exceptional strength and durability Precision-molded for smooth, reliable feeding, reducing friction and ensuring consistent round stacking Magazine spring crafted from heat-treated chrome silicon wire for enhanced longevity and consistent feeding performance Proudly made in the USA for superior quality and craftsmanship