This magazine's plastic lips make it much more durable. High-capacity magazine fits Ruger 10/22 auto, 25 rounds of .22LR. Banana-curved clip with plastic body and plastic lips that can be snapped together for double the firepower. Not Ruger Factory. NOT legal to own, carry or sell to residents living in California and other states. Specific state laws prohibit the sale and shipment of this magazine; we CANNOT sell or ship to California, Hawaii, Maryland, Massachusetts, New Jersey, New York, Chicago, IL, Aurora, IL, Cincinnati, OH, Columbus, OH, Toledo, OH, Philadelphia, PA, South Bend, IN.