Magnum Cartridge Inc. was on hand displaying their water-jet cutting prowess. They offer custom cut foam inserts for the Pelican or Plano hard cases. They have patterns that they can use or you can send them a tracing of your firearm. They can even add things like battery and magazine slots.
They also offer a very good looking AR-15 stock wrench, AR-15 end plate sling mounts, and AR-500 steel targets.