by Shooting Illustrated Staff posted on February 28, 2011 Guns Support NRA Shooting Illustrated DONATE ** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** Barrett REC7 in 5.56 NATO In this article AR, AR-15, Barrett, Magpul, semi-auto rifles Related Stories Barrett REC7 in 5.56 NATO Barrett REC7 Chambered in 5.56 NATO Gallery The Truth About Pistons Yankee Hill Machine Desert Enforcer Colt Match Target M4 Gallery Most Popular CZ to Supply Pistols to the German Army 10mm vs. .40 S&W: Similarities, Differences and Uses First Shots: Springfield Armory Hellcat OSP .380 First Look: Ruger Red Label III Shotgun Top 5 'Budget-Priced' .50 BMG Rifles 10 Budget-Priced .22 Rifles Under $200