CMMG 10 Round Magazine Extension for FN Five-seveN 5.7x28mm

This black 10-round magazine extension from CMMG is a replacement component for the FN Five-seveN 5.7x28mm pistol, designed to increase the capacity of the standard 20-round magazine by 10 rounds. It is intended for owners who want additional capacity from their existing magazines.

The extension is listed as chrome silicon spring material and is finished in black. It is sold under model number 57AFD1E as a magazine extension kit, and the raw listing describes it as a 10-round capacity addition for the 20-round FNH Five-seveN magazine.

Because it is built to fit the FN Five-seveN 20-round magazine, it is specified for use with that magazine only and should be checked for compatibility before installation.

• Brand: CMMG
• Model: 57AFD1E
• Caliber: 5.7x28mm
• Fits: FN Five-seveN 20 round magazine
• Capacity: 10 Rounds added
• Material: Chrome silicon spring
• Color: Black