WARNE 3111 GLOCK 17/22 BK +5/9MM +4/.40

Warne MEG1754BLK Magazine Extension made of 6061-T6 Aluminum with Hardcoat Anodized Black Finish for Glock 17, 22 Magazines (Adds 5rds 9mm Luger, 4rds 40 S&W)
These extensions feature an ergonomic shape that allows for better insertion, and finger grooves, allowing the magazine to be stripped from the handgun if needed.