This replacement or spare magazine is compatible with your rock island 1911.
Caliber: 9mm Luger
Capacity: 17rd
Finish: Blued
Model: 1911
Material: Steel
Type: Detachable
Model Fit: 1911
Brand Fit: Rock Island
Capacity: 17
Caliber: 9mm Luger
Capacity: 17rd
Finish: Blued
Model: 1911
Material: Steel
Type: Detachable
Model Fit: 1911
Brand Fit: Rock Island
Capacity: 17