by Guy J. Sagi posted on December 22, 2010 Guns Support NRA Shooting Illustrated DONATE Bushmaster ACR In this article 5.56 NATO, Bushmaster, Magpul, Tactical Related Stories Bushmaster ACR Smith & Wesson M&P15 MOE New for 2018: Bushmaster XM-15 SD AR-15 Pistol Aftermarket AR Magazines Review: IWI Zion-15 Rifle Most Popular Review: KelTec Sub2000 Gen3 Tech Wisdom: Ancient Ammo Rifles: Pulling the Wool Over Our Eyes? See Your Sights Pro Shop: Make Your Glock Rock I Carry: Ruger SP101 Revolver in a Galco Holster