The Shield Arms S15 Gen 3 is a flush-fitting steel magazine designed for the Glock® 43X and Glock® 48. It provides a 15-round capacity while maintaining the same overall length as the OEM Glock 10-round magazine by using Shield Arms’ patent-pending staggered geometry. Gen 3 updates include new US-based manufacturing, improved steel and coating, raised rear ribs to better align with OEM magazine position, and a black nitrocarburized / black nickel finish for enhanced corrosion resistance.
Key Specifications
- The model is the S15 Magazine (Gen 3).
- The magazine holds 15 rounds.
- The magazine is chambered for 9mm.
- The body material is steel.
- Intended fit for Glock 48 / Glock 43X.
- The finish is black nickel / QPQ (nitrocarburized).
- The overall length matches the OEM 10-round Glock magazine.
- Includes an easy-to-remove impact-resistant base pad.
- Manufactured in the USA.
- Gen 3 improvements include raised rear ribs and upgraded steel/coating for fit and durability.
The S15 Gen 3 is engineered to increase on‑hand capacity without changing the pistol’s external profile, offering a reliable, serviceable magazine option for concealed-carry and everyday carry setups that use the Glock 43X/48 footprint. Its improved materials and finish address corrosion resistance and fit tolerance while preserving the familiar Glock magazine interface.
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