Check out gun safes at Walmart.....on-line not store
16 gun (rifle/shotguns etc) safe under $400 and safe weighs 168#
OR buy 2 smaller capacity and mount on opposite walls
LOTS of options and many ON SALE right now.
I also had a large collection of weapons ----sold some (Bows, large bore hunting rifles, some single action revolvers/lever action rifle ---cowboy shooting, small bore rifles etc) prior to hitting the road FT.
But there were many handguns/rifles/shotgun that were 'special' and no way was I going to sell them off.
I didn't use a standup safe in my 5th wheel when we went FT.
Some handguns went into a long flat metal lock box that required removing bottom chest drawer to access (keep sake guns)
Rifles/shotguns went in underbed storage area.
Course some handguns were readily accessible :B
Thing is..........RVs are NOT secure. Cheap door locks/easily broken into.
Large windows that can be used as entry.
Thief wants in they can easily get in.
So I had high personal property homeowners insurance coverage in case of loss.
Sure it would have been a real bummer ----- many of my weapons were passed on from my DAD, some are high valued Brands/Models hard to replace etc.
But they were fully insured.
A good gun safe (such as ones at Walmart) are difficult to break into and bolted down hard to remove so they can be a deterrent to common thieves.