http://www.baesystemspresskit.com/ausa2007/M777A1_Lightweight_155mm_Howitzer.cfm
http://www.army-technology.com/projects/ufh/
http://www.deagel.com/Towed-Guns/M777A2_a000511001.aspx
http://www.highbeam.com/doc/1P3-1319383351.html
It doesn’t look terribly different from the M198.
Towed by the muzzle. Neat.