The Special Forces have obtained the latest version of the AT-4 (M136) anti-tank rocket launcher. This is the version that can be fired from within a building. The "CS" (Confined Space) version is heavier (at 16.5 pounds), and 24 percent slower (at 726 feet per second) than the standard M136. The manufacturer, Bofors of Sweden, has been selling the CS version to France and Denmark since the late 1990s. Apparently the decision has been made to issue the CS version to all American troops.