paleobushman (25)in #magpul • 7 years agoRUGER AR 556 MAGPUL furniture UPGRADE Part 1 - YouTubeIf you are going to buy a Ruger AR 556 it is definitely a reliable weapon. but I would suggest replacing the factory…paleobushman (25)in #ar15 • 7 years agoMagpul AR Pistol Grip UpgradeHow to install the Pistol Grip in a Ruger AR 556 to include the size of the 4.5mm Allen wrench. Also I know the FLAG…