SKU: MGSW14457
UPC: 022188901542
MPN: 14457
The Smith & Wesson factory 15-round magazine delivers extended capacity for owners of the compact 9mm pistol in the CSX-E Series lineup. This isn't an aftermarket approximation—it's the genuine factory magazine built to the same specifications as the original equipment that ships with the pistol. For shooters who want additional rounds on tap without swapping to a different platform, this extended magazine provides five extra rounds over the standard 10-round configuration. We stock factory magazines because reliability matters when it counts, and Smith & Wesson's in-house production ensures proper fit and feeding.
Construction centers on nitride-coated stainless steel, a finish that provides lasting corrosion resistance even when exposed to sweat, humidity, or inclement weather. The nitride treatment penetrates the steel surface rather than sitting on top like traditional bluing, which means the protective properties remain intact even as the magazine sees heavy use. Inside, a high-tensile steel spring maintains consistent feeding pressure throughout the full 15-round stack, while the injection-molded polymer follower reduces friction for smooth cycling. The extended floorplate adds minimal length to the grip profile while providing a more secure purchase during rapid reloads. These design choices reflect Smith & Wesson's focus on durability across thousands of loading cycles.
This magazine serves shooters who carry the compact 9mm pistol for personal defense and want a reload option with greater capacity, as well as range shooters who prefer fewer magazine changes during practice sessions. The extended baseplate also benefits those with larger hands who find the standard grip slightly short. Pair this with a quality holster setup and keep spare magazines in a dedicated magazine pouch for a complete carry configuration. Browse our full selection of magazines and handgun ammunition to round out your loadout.
Yes, this factory magazine is designed for the Smith & Wesson CSX-E Series pistols chambered in 9mm. The extended magazine functions identically to the standard 10-round version but provides five additional rounds and a slightly longer grip profile due to the extended floorplate.
Nitride coating penetrates the stainless steel surface rather than sitting on top like traditional finishes. This provides superior corrosion resistance that holds up to sweat, humidity, and harsh conditions. The finish remains effective even after extended use and repeated loading cycles.
The extended floorplate adds approximately half an inch to the overall grip length compared to the standard 10-round magazine. This provides a fuller grip for shooters with larger hands while keeping the pistol compact enough for concealed carry.
This is a genuine Smith & Wesson factory magazine, not an aftermarket reproduction. It carries the manufacturer's part number 14457 and is built to the same specifications as magazines that ship with new pistols, ensuring proper fit and reliable feeding.
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