Shield Arms S15 Gen 3 9mm 15-Round Magazine for Glock 43X/48

The S15 magazine is a Patented, flush-fitting 15 round magazine for the GlockA(R) 43X and GlockA(R) 48. The S15 is a steel magazine, and is the same length as the OEM GlockA(R) 10 round magazine, but holds an additional 5 rounds. GlockA(R) pistols and magazines are known for reliability - the S15 maintains that same GlockA(R) reliability, while giving you a 50% increase in magazine capacity in the same overall footprint. Shield Arms accomplished this increased capacity with our patent-pending magazine geometry, allowing the rounds to stagger, thereby fitting more in the same amount of space. Proudly made in the USA. QPQ Nitrocarburizing is a type of surface treatment used to enhance the durability and corrosion resistance of metal parts. The process involves heating the metal in a controlled environment, where nitrogen and carbon are introduced to the surface of the metal. This forms a thin layer of a hard compound called "nitrides," which increase the surface hardness of the metal. During the QPQ Ni