Henning Group's CZ 75 / CZ Shadow 2 Magazine Extension for your Mec-Gar CZ-75B 9mm. With just the extension and using your factory follower and spring, it will increase capacity from 17 round magazine to 21 rounds.
The factory/Mec-Gar CZ-75B 9mm 17rd magazines and 15rd Compact magazines with our kit fit a variety of guns:
CZ Shadow 1&2, CZ-75 SP01
Dan Wesson DWX Compact
Tanfoglio Small Frame
Magnum Research' Baby Eagle
This kit fits the USPSA 141.25mm magazine gauge.
The latest design includes numbering dots, a side cutout for light side grab and a reinforced wall thickness. This design is also made to not over-insert.