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. The result is quality, consistency, durability and reliability. Specifications: - Fits: AR-15 9mm Luger - Capacity: 32 Rounds - Material: Steel - Finish: Blue
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