Reinforcing Your M4 Pistol Grip By maomag in OutsideLaunchers3,06722Save PDFFavoriteIntroduction: Reinforcing Your M4 Pistol GripBy maomagwww.facebook.com/maomagFollowMore by the author:tired of those loose threads on your m4 pistol grip? try this DIY!Step 1: just follow picturesStep 2: Step 3: Step 4: