We've just expanded our very popular 15mm modern US range with two new sets: A light mortar section (two mortars and four poses of crew), and a set of heavy weapons -- a TOW2 launcher with two crew, and a tripod that can mount either an M2 .50 HMG or a Mk19 GL, and two crew for the tripod.
Both are available now, listed under "US ARMY INFANTRY SUPPORT WEAPONS ETC."
http://khurasanminiatures.tripod.com/modern-us-army.html