CMMG FiveseveN Magazine Extension Kit Adds 10 Rounds Polymer Black 57AFD1E

This CCMG magazine extension kit includes a spring and magazine body extension for the FN FiveseveN, increasing capacity from 20 rounds to 30.

Features and Specifications:
Manufacturer Number: 57AFD1E
10 round extension for FN FiveseveN mgazines
Caliber: 5.7x28mm
Capacity: Adds 10 rounds to factory magazine
Body Material: Durable polymer
Spring Material: Corrosion resistant steel
Matches the contours of your existing magazine
Reliable function for years to come
Finish: Black

Fits:
Gen 1 FN FiveseveN Factory Magazines

Does Not Fit:
Current Generation Magazines