CMMG/COMERCIAL MARKETING FiveSeven Mag Extension
5.7 10rd Mag Extension. The ultimate upgrade to your 5.7x28 pistol. This magazine extension is for the 20 round mag. Simply remove floor plate, inspect factory mag opening for burrs (remove burrs as necessary) install extension, insert spring and add floor plate. Installation takes only seconds and does not permanently alter factory magazine. Chrome silicon spring is salt water resistant and will not take a set.
Mfg Item Num: 10202
Category: FIREARMS - CLIPS & MAGAZINES
Material :Chrome silicon spring
Type :Mag Extender