Analysis and technical review about the new Heckler & Koch M110A1 Squad Designated Marksman Rifle (SDMR), which started to enter in service with United States Army. In April 2016 Heckler & Koch confirmed that a lighter version of the G28 (HK417) had won the U.S. Army's Compact Semi-Automatic Sniper System contract to replace the M110 Semi-Automatic Sniper System under the name of M110A1. Read full analysis about the M110A1 at this link ...