MEC-GAR MAG S&W59/915 9MM 10RD BL

Description

Mec-Gar has been manufacturing magazines as an original equipment supplier to major firearm producers since 1965, and this replacement magazine for the Smith & Wesson 5900 Series, 910, 915, and 659 pistols is built to the same standard as the magazines those guns shipped with. If your factory magazine has worn out or you want a verified spare, this is a direct-fit option rather than an adaptation of a different platform’s design.

The tube is formed from heat-treated carbon steel and given a blued finish — the same designation Mec-Gar uses for their OEM work, not a generic coating description. Heat treatment matters here because it hardens the steel against the repeated stress of spring tension and feeding cycles without making it brittle. The follower and floorplate are both high-impact polymer. A polymer follower reduces the chance of the last round hanging up on a metal surface under spring pressure, while the flush-fitting polymer floorplate keeps the grip profile consistent with the pistol’s original geometry — no extended basepad to snag on a holster or cover garment. The spring is high-tensile music wire, which is chosen for its ability to maintain consistent pressure across the full range of compression rather than softening with use over time.

All Mec-Gar magazines are manufactured in Italy. For a shooter running one of these older S&W double-stack 9mm pistols, having a confirmed OEM-grade spare on hand is straightforward insurance against the cost and downtime of tracking down a serviceable used original.