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 First Look: Wilson Combat Division 77 Project 1 The Ultimate Home Defense Shotgun Classes or Practice Time? 10mm vs. .40 S&W: Similarities, Differences and Uses 10 Reasons to Consider the .22 for Personal Defense Looking Versus Seeing