Shield Arms S15 Gen 3 9mm 15 Round Magazine

The Shield Arms S15 Gen 3 is a patent-pending, flush-fitting 15-round magazine designed for the Glock 43X and Glock 48. Constructed from steel, it matches the length of the OEM Glock 10-round magazine while providing capacity for an additional 5 rounds. This generation introduces several refinements: US-based manufacturing, modular tooling, and raised ribs on the magazine back that align flush with the OEM magazine position in the mag well to eliminate tolerance stacking from Glock frame variations. The Gen 3 also features new steel with increased thickness and toughness, along with a new standard black nitrocarburized QPQ finish that delivers high corrosion resistance.