I have this for my car:
I wrap the cable around the base of the driver seat. Fits my 1911 and mags perfectly. Security is ok, anyone that breaks in either won't see it or not want to take the time to open it. Cable is steel so they would need cutters to cut it.
Sometimes you can find this same safe at Walmart, but any sporting goods store should have it.
Looks like Amazon has it: http://www.amazon.com/Nano-Vault-Gun...ef=pd_sbs_sg_6
If you have prime membership with Amazon shipping is free.
My other complaint is that initially the case smells really funny cuz of the foam. Just air the foam out, it'll be fine.