This long replacement or spare magazine is compatible with your s&w m&p15-22.
Caliber: 22 LR
Capacity: 10rd
Finish: Black
Model: M&P
Material: Polymer
Type: Detachable
Model Fit: M&P15-22
Brand Fit: S&W
Capacity: 10
Caliber: 22 LR
Capacity: 10rd
Finish: Black
Model: M&P
Material: Polymer
Type: Detachable
Model Fit: M&P15-22
Brand Fit: S&W
Capacity: 10