Perfect for the SHTF storage of your troops rifles, or just inexpensive security (they have a locking bar that goes across the rifles, securing them in the case. They sell new for about $1200, and hold 6 M4/M16/AK (mods required for AK) rifles. These are "as new", with a few minor scuffs on the high spots and corners, but no gouges, writing, or gashes in the case. Cases have a built in humidistat and pressure relief valve. $200 each, problem is they are $$$ to ship (best method is Greyhound, cost is about $80-85 ranging from South Carolina to Texas to L.A. I can give an exact quote when I have your city/state. Could deliver a few to Knob Creek if anyone is going, or you could pick up here (near Bloomington, IN). As these are Pelican cases, they should be guaranteed for life. Post "I will take XX chests" in this thread and follow up with an email please. Payment via Postal MO or cash at the Creek. If you have questions contact me via email for fastest reply.
Sorry for the crappy iphone pics.
ETA: Also, any free-floating rail/tube system will require mods to the crossbar similar to what is shown below for the AKs to fit (about a 5 minute job, 2"x2" section cut out with hacksaw and razor knife). That is the bottom side of the crossbar, section cut out is toward the buttstock.