Shield Arms S15 Gen 3 Black Glock 43X/48 9mm Luger Handgun Magazine - 15 Rounds - The Shield Arms S15 Gen 3 is a 15-round steel magazine designed for Glock 43X and Glock 48 pistols. This patented magazine increases capacity by 50% over standard 10-round OEM magazines while maintaining the same flush-fit profile, making it ideal for concealed carry without sacrificing concealability. Constructed from premium steel with QPQ nitrocarburized or Electroless Nickel finish options, the S15 Gen 3 offers superior durability and corrosion resistance compared to polymer OEM magazines. The innovative patented staggered-round geometry maximizes capacity while ensuring reliable feeding and function. Key Features 15-round capacity in flush-fit profile Steel construction for enhanced durability Easy-remove impact resistant base pad Compatible with Shield Arms magwells Patented staggered round geometry QPQ nitrocarburized or Electroless Nickel finishes for wear resistance