Securing Long guns in a truck?

So after posting I decided to go out and remove the plastic liners in the back of the double cab. Took them out in a few minutes and wow so much more room back there, I figure everything like tools and shovels can go in the tool box, now when I go shooting I can put my rifle case behind the back seat and they are completely hidden from view. Now if only there was a way to lock that area

 

Any pics of said room?

 

Soon truck is in the shop my blower motor went out this morning tomorrow I should be able to take some pics. I want to do more with it make it look nicer but don't know what. But I can fit a 50cal ammo can and my M&P15 16" (secured in the bag of course) behind the back seat along with my range bag with out an issue. before I was unable to put the rifle back there because the plastic dint give me the 33" required {length of the rifle with the stock collapsed)

 

Any new ideas for long gun storage?

 

How about this:

http://reviews.cabelas.com/8815/220667/big-sky-racks-sky-bar-gun-rack-reviews/reviews.htm

 

Shorter guns???

 

I like the way you think! I have a VZ-58 side folder that fits well into a tennis racket bag. It's good for zombies but frowned upon for hunting here in PA.

 

I've been packing more .45ACP ammo and a couple of extra loaded mags... figure reloading the gun is bad enough - but having to reload a mag would be the end of me.