ProMag Magazine for Winchester 52, 57, 69 22 Long Rifle 10-Round Steel Blue

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. Note: Due to differences in manufacturing tolerances, gunsmith fitting may be required.