managed to pick up a tufloc shotgun lock off ebay for almost nothing - if you arent familiar with them - thats what most law enforcement uses to mount their remington 870 in a patrol vehicle - crown vic trunk lid, divider cage, etc.
It locks around the pump tube/barrel with an electromechanical lock - theres a button hidden somewhere, hit the button, the lock pops and you can grab the gun and go - also has a manual keylock that uses a handcuff key.

Anyway, sometimes when I'm out I'll carry the 12g in case I see pigs or whatever and i wanted a secure way to carry one - with a couple of minor mods, this worked out great.

first problem is this was made for a remington 870 and I wanted to use it for my maverick 88 - same thing as a mossberg 500.

to fit into the lock, I shortened the foregrip on the pump a couple of inches, with a mossberg - the pump actually overlaps the receiver a bit at full pump, so the foregrip is longer than most.

then found a mounting spot next to the back seat.

had to do a little bending to the mounting plate to make it clear the tac flashlight mounted under the barrel then made mounting brackets and bolted it in.

still need to pick up a momentary switch to hide for the release but at least its mounted.

anyway - it hides pretty good even with the windows out thanks to the nets and the pack mounted to them
- here are the pics.

That will come in very handy when the zombies show up.

very cool mod!!!

I wish my SO would spring for those...ours are just tossed on the back seat lol

I forgot I posted this here!
I just sold 2 of them brand new to the local marshal for $40
Here's some more info and a video

mossberg maverick with shortened pump



tufloc opened



locked on - you cant work the pump or anything, even if you tear the mount out of the vehicle - gun is still useless unless you disassemble it to take the foregrip/slide off to remove the lock.




from the inside with the mouting brackets all finished



heres a video of it working

http://www.youtube.com/watch?v=T86A6lmaAmY

Sweet lock!

do you have any more for sale?

nope, sorry - I've been trying to get more, I could sell as many as I can get!
I'll PM you if I can get ahold of any more

nice job. i have the same shotgun