Shield Arms Glock 17 17/Rd Handgun Magazine With +5 Extension Black 9Mm Luger 22/RdShield Arms$73.53
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Shield Arms
The Shield Arms S15 is a 15-round 9mm magazine purpose-built for the Glock 43X and Glock 48, giving you genuine capacity gains in a frame-sized footprint. If you're carrying a slim single-stack and frustrated by the 10-round OEM magazine capacity, the S15 bridges that gap—it maintains the same overall length as a factory Glock magazine while holding five additional rounds. That's practical flexibility for everyday carry, range work, or backup magazines without a pocket-dump penalty.
Shield Arms engineered the S15 as a steel magazine with updated materials and manufacturing. The generation 3 version features raised ribs on the magazine body to match OEM mag-well positioning precisely, which heads off tolerance stacking issues across Glock frame variations. The steel is thicker than earlier iterations, treated with a nitrocarburized QPQ finish for serious corrosion resistance—important if you're depending on this magazine in the field. All S15 magazines are made in the USA and carry a patent-pending design.
One critical caveat: Shield Arms requires you to swap your OEM plastic mag catch for their steel mag catch to ensure reliable feeding and extraction with the S15. The factory plastic catch wasn't designed for this magazine's geometry and tension profile. Pair the S15 with a Shield Arms steel catch (they offer standard and premium versions) and you eliminate the guesswork. The magazine itself ships with an impact-resistant base pad that's easy to remove if you prefer a flush setup.
The S15 is built for shooters who want to maximize rounds on board in a compact carry platform without compromising reliability or ergonomics. Whether you're upgrading your 43X/48 for duty, sport, or EDC, this magazine closes the capacity gap that comes with choosing a slim-line frame.
| Caliber | 9mm Luger |
| Capacity | 15 rounds |
| Compatibility | Glock 43X, Glock 48 |
| Material | Steel |
| Finish | Black nitrocarburized QPQ |
| Length | Same as OEM Glock 43X/48 magazine |
| Manufacturer | USA-made |
| Design Status | Patent-pending |
The S15 requires you to replace your OEM plastic mag catch with a Shield Arms steel mag catch. Without this change, you may experience reliability issues. The magazine itself fits the frame, but the catch swap is mandatory for safe, dependable operation.
Shield Arms specifically engineered the S15 to work with their steel mag catches. Using another manufacturer's catch may result in reliability problems. For best results, pair the S15 with either a Shield Arms standard or premium steel mag catch.
The product name references a +2 extension; the magazine comes equipped with an impact-resistant base pad that is removable if you prefer a flush fit. Refer to the product listing or contact us directly for clarity on whether a separate +2 extension component is included.
The S15 is designed for the Glock 43X and Glock 48. Compatibility with other Glock models is not specified in the product information.
Shield Arms
The Shield Arms S15 is a 15-round 9mm magazine purpose-built for the Glock 43X and Glock 48, giving you genuine capacity gains in a frame-sized footprint. If you're carrying a slim single-stack and frustrated by the 10-round OEM magazine capacity, the S15 bridges that gap—it maintains the same overall length as a factory Glock magazine while holding five additional rounds. That's practical flexibility for everyday carry, range work, or backup magazines without a pocket-dump penalty.
Shield Arms engineered the S15 as a steel magazine with updated materials and manufacturing. The generation 3 version features raised ribs on the magazine body to match OEM mag-well positioning precisely, which heads off tolerance stacking issues across Glock frame variations. The steel is thicker than earlier iterations, treated with a nitrocarburized QPQ finish for serious corrosion resistance—important if you're depending on this magazine in the field. All S15 magazines are made in the USA and carry a patent-pending design.
One critical caveat: Shield Arms requires you to swap your OEM plastic mag catch for their steel mag catch to ensure reliable feeding and extraction with the S15. The factory plastic catch wasn't designed for this magazine's geometry and tension profile. Pair the S15 with a Shield Arms steel catch (they offer standard and premium versions) and you eliminate the guesswork. The magazine itself ships with an impact-resistant base pad that's easy to remove if you prefer a flush setup.
The S15 is built for shooters who want to maximize rounds on board in a compact carry platform without compromising reliability or ergonomics. Whether you're upgrading your 43X/48 for duty, sport, or EDC, this magazine closes the capacity gap that comes with choosing a slim-line frame.
| Caliber | 9mm Luger |
| Capacity | 15 rounds |
| Compatibility | Glock 43X, Glock 48 |
| Material | Steel |
| Finish | Black nitrocarburized QPQ |
| Length | Same as OEM Glock 43X/48 magazine |
| Manufacturer | USA-made |
| Design Status | Patent-pending |
The S15 requires you to replace your OEM plastic mag catch with a Shield Arms steel mag catch. Without this change, you may experience reliability issues. The magazine itself fits the frame, but the catch swap is mandatory for safe, dependable operation.
Shield Arms specifically engineered the S15 to work with their steel mag catches. Using another manufacturer's catch may result in reliability problems. For best results, pair the S15 with either a Shield Arms standard or premium steel mag catch.
The product name references a +2 extension; the magazine comes equipped with an impact-resistant base pad that is removable if you prefer a flush fit. Refer to the product listing or contact us directly for clarity on whether a separate +2 extension component is included.
The S15 is designed for the Glock 43X and Glock 48. Compatibility with other Glock models is not specified in the product information.
