PROMAG MAG GLOCK 48/43X 9MM 20RD BLK

20-round magazine - Fits Glock� 48 / 43X 9mm - Magazine body constructed of heat treated steel with black oxide finish - Steel magazine body with polymer catch insert allows use of factory Glock� mag catch with no modifications needed - Injection molded magazine follower - Spring is made from heat treated chrome silicon wire - Made in USA