The Shield Arms S15 +5 magazine extension increases capacity by five rounds for use with S15-series magazines. It uses a unique easy-access floor plate that allows service of the spring and follower without removing the extension from the magazine body. Machined from billet 6061 aluminum and finished with Type 2 anodizing, the extension is built for durability and frequent handling. The extension ships with a 12-coil plus power spring and is covered by Shield Arms’ lifetime warranty and Spring for Life guarantee.
Key Specifications
- The extension adds +5 rounds to the S15 magazine.
- Constructed from billet 6061 aluminum.
- Finished with a Type 2 anodized coating.
- Includes a 12-coil plus power spring.
- Features a unique easy-access floor plate for spring and follower service without removing the extension.
- Has index cuts on the extension body to increase grip when removing from a pouch.
- Fits Shield Arms S15 magazine only, per manufacturer text.
- Compatible with most aftermarket flared mag wells, according to product details.
- Color is gold.
- Backed by a lifetime warranty and Shield Arms Spring for Life guarantee.
Designed for users who value serviceable, high-quality components, the S15 +5 extension blends capacity, grip, and durability in a compact package. Its serviceable floor plate and robust construction make it a practical upgrade for range, training, or everyday carry setups where additional capacity and reliable function are desired.
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