Only the finest polymers or high carbon heat-treated steel go into our magazine bodies. ProMag magazine bodies are constructed of high carbon heat-treated steel and TIG-welded for strength. The springs are precision wound using heat-treated chrome silicon wire. Bases and followers are injection molded from polymers selected for their durability. This produces the finest quality magazines that perform under the harshest conditions. Gun/Pistol Type: Springfield XD-40 Caliber: Material: Steel Capacity: 11 Round Color: Blue
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