Ruger SR556 Review Posted August 31, 2010 in AR-15, Rifles by Steve Johnson with 9 CommentsTags: ar, ar-15, rifle, rifles, ruger, sr556 Vuurwapen Blog reviews the Ruger SR556. Part 1. Part 2. The video review is below … I have used one and I liked it. A common complaint is that is heavy, which it is, but this is not necessarily a bad thing and comes down to personal preference. [ Many thanks to jdun1911 for emailing me the link. ] Win the new Springfield Armory XD-9 Mod.2 TFB's first ever gun giveaway.