Unfortunately, this item has been discontinued by ProMag. We do try to offer similar items when an item is discontinued by the manaufacturer.
This sturdy 50 Round magazine is made of rugged polymer with metal feed lips so it will with stand years of use. Fits most 10/22 models, .22LR and .17 Mach 2. The springs are precision wound using heat treated chrome silicon wire. Followers are injection molded from polymers selected for their durability. This improved magazine design includes a steel insert and a loading assist lever for reliable feeding in any conditions.