ProMag 20rds 9mm, Blue

The ProMag S&W CSX magazine is built from 4140 heat-treated steel for exceptional durability and wear resistance. Its blued oxide finish enhances corrosion protection while maintaining a sleek, professional look. Designed with precision-formed feed lips and an anti tilt polymer follower, this magazine ensures smooth and consistent feeding to minimize malfunctions. A heat-treated chrome silicon wire spring maintains optimal tension for reliable cycling. The extended design provides increased capa