CMMG 57AFD1E Extension 5.7x28mm 10 Compatible w/FN Gen1 Five-seveN Magazines

Product Features

• Item Purpose: Extension
• Caliber: 5.7x28mm
• Capacity: 10
• Finish: Black
• Model: Extension
• Type: Magazine Extension
• Model Fit: Five-seveN
• Brand Fit: FN
• Capacity: 10