This magazine is made of long-lasting clear polycarbonate with a constant force spring for easy loading, and locking tabs for connecting two magazines together. A removable bottom panel allows you to clean out debris that accumulates after extensive shooting sessions. It fits Ruger 10/22, 77/22, and 96/22. This model is a double stack magazine with a steel header for long life and durability. It has a 30-round capacity and a clear finish.