https://www.twz.com/43941/ac-130-gunships-are-finally-getting-a-new-105mm-howitzer
AC-130 Gunships Are Finally Getting A New 105mm Howitzer
Navy engineers designed and built a prototype howitzer to replace the 1960s-era design that AC-130 gunships use now.
ac 130 gunshipsfinallygettingnew105mm