ProMag SMIA18 Magazine S&W SD40 15-Round Steel Black

ProMag SD40 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. Features Magazine body constructed of heat treated steel with black oxide finish Injection molded magazine follower Magazine spring formed from heat treated chrome silicone wire Will NOT work in the VE version