PROMAG MAG GLOCK 23 40SW 13RD STEEL INSERT POLY

13-round magazine – Fits Glock® Model 23 and 27 .40 S&W® – Magazine body constructed of a proprietary DuPont™ Zytel® based polymer – Magazine body has full length steel internal insert stamped and welded like the factory magazine – Injection molded magazine follower – Spring is made from heat treated chrome silicon wire – Made in USA