DARPA is showing an interesting project for a Flying Missile Rail (FMR) that carries at least one AIM-120 air-to-air missile and can fly on its own for 20 minutes at Mach 0.9.
Video: DARPA
The FMR is to be carried on hardpoints certified for 2,000lb weapons. DARPA is looking at mounting it on the F-16 and F/A-18.
The objective is to churn out 500 such rails in a month. The research agency is not mandating any manufacturing process.