Deleted

[300srt8guy]

Buy a larger safe to put that safe inside of, that should make it all a lot heavier

[TurboChrisB]

You're going about this whole gun thing wrong....

Ha! This!

[Mayor McRifle]

What do you keep in your safe to add weight?

Guns.

[kmas]

The mother in law

[Bigtwin]

Unless your short-term version is just a couple of months, bolt it down. Anything done with a bolt can be undone when you move. It's not that complicated.

[tradecraft]

How light is your safe that 40lbs is going to make any difference to it?

[robledo]

drugs

[JackEllis]

I play the odds. Small odds of a burglary. Small odds it'll be more than one person. Small odds the burglar(s) will bring the right tools. Small odds the burglar(s) will want to hang around. Guns have locks. Windows all have tempered glass on the outside. Doors are either metal or solid wood. Cabinet has ammo on the bottom. Come to think of it, buying more ammo has the ancillary benefit of thwarting thieves (yeah, sure . If only I could train our cats to bite and scratch the crap out of intruders.

There's no way to stop a determined thief, so my plan is to make it prohibitively expensive in time and effort for the smash-and-grabbers.

[MarikinaMan]

Bulk Ammo!

Bulk ammo in a metal safe. That’ll make a nice bomb during a fire. Genius!

OP - check this out, and similar devices https://www.amazon.com/Libertys-SafE.../dp/B00HDX0NR2

[Cody]

I recommend gold bars, they are extremely heavy for their size. 15 or 20 in the bottom of your safe will definitely weight it down and you'd want to keep them in there anyway.

[Guns and guitars]

Guns?

[lt05deluxe]

^this

[9mmContagion]

Build a nice wood cabinet around it. Screw the frame of the cabinet into studs, and frame tightly around the safe. Cost you all of $40 tops

[Daze]

Electromagnet

[gaberaynes]

Put bolt inside of return air duct, hook a steel cable to it set safe over, run cable thru bolt holes, tie off inside(make it tight so little to know play) bam good to go.
40lbs is really nothing in my opinion.