ISMI magazine springs are made from high tensile, chrome silicon wire, ensuring durability and a long service life without failure.
The SSCS model fits single-stack, 8 round .45 ACP and 10 round .38 Super magazines, while the SSCS2 is suitable for magazines with narrow followers, and the SS10 fits 10 round .45 ACP magazines.
These springs are not compatible with Wilson Combat plastic followers and are designed for 1911 Government and Commander models.