Lebanon, which has ISIS on their doorstep, has just announced they are upgrading a number of their Cessna C-208B, single engine turboprop, aircraft to the ATK Orbital AC-208B configuration. The AC-208B aircraft were designed for the Iraqi Air Force last year. This cheap strike platform is ideal when facing an enemy with no air force or long range anti-air capability.

(Not gun related, but I thought this was pretty nifty)