Shield Arms S15 Gen3 Magazine — 15rd 9mm for Glock 43X/48

The Shield Arms S15 Gen3 is a flush-fitting steel magazine designed to increase capacity in Glock 43X and Glock 48 pistols without changing the overall magazine length. It provides a 15-round capacity for 9mm, achieved through Shield Arms' staggered magazine geometry and updated Gen3 construction. The magazine is treated with a nitrocarburized (QPQ) finish for improved surface hardness and corrosion resistance.

Key Specifications

• Holds 15 rounds of 9mm cartridge.
• Designed to fit Glock 43X and Glock 48 pistols.
• Constructed from steel for durability.
• Finish is nitrocarburized (QPQ) to enhance corrosion and wear resistance.
• Maintains the overall length of the OEM Glock 10-round magazine while increasing capacity.
• Equipped with an impact-resistant removable base pad that is easy to remove.
• Includes a lifetime warranty against manufacturing defects and a spring-for-life guarantee.
• Gen3 updates feature raised rear ribs, revised steel and heat treat, and modular tooling implemented in Gen3.
• Utilizes a patent-pending staggered geometry; design is patent-pending.
• Made in the USA.

For users seeking higher magazine capacity in a compact package, the S15 Gen3 delivers a practical increase in rounds without altering the pistol's external profile. Its steel construction, QPQ nitrocarburized finish, and Shield Arms warranty support long-term service life. Shield Arms recommends using their steel mag catch for optimal reliability with these magazines; when used as recommended, the S15 Gen3 is suited for everyday carry and range use where increased capacity in a compact footprint is desired.