CMMG FN FiveSeven 5.7mmX28mm 10 Round Magazine Extention Kit
Buy your CMMG Magazine Extension Kits at BattleHawk Armory today!This FiveSeven 10rd mag extension is the ultimate upgrade to your 5.7x28 pistol. Installation takes only seconds and does not permanently alter factory magazine. Chrome silicon spring is salt water-resistant and will not take a set.10 Round ExtensionFN 5.7 Pistol MagazinesIncreases Capacity
