Well honestly I would think the people who make Boomerang could probably replace all the armour with heavy durable easily replaced thick heavy plastic, and convert it into a camper RV that you could drive around... I watch the Top Gear specials where they go all sorts of places and many of the roads around the world require good suspension and near amphibious capability... and of course when you see the specials what you don't see is the enormous caravan of 4WDs and light trucks that carry all the cameramen and support equipment like spare tires etc.
Small arms manufacturers usually already make civilian firearms, and the people making the Ratnik sets could certainly adapt most of what they make to the camping and hiking market... not to mention those episodes of Combat Approved where the guy is in that all orange one piece suit in the arctic where he jumps in water and is fine.... I would love some of that gear...
Not to mention most aircraft makers could make civilian alternatives...
All they really need are aggressive people to market it.
I have bought a nice rifle... it is a Bars-4-1 and it is a neat compact little rifle... my problem is that it comes in three calibres... .223, 7.62x39mm and 5.6x39mm and I got the last calibre... 5.6x39mm
Originally I thought it was just a funny way of writing 5.45x39mm but in actual fact it is a hunting calibre based on the 7.62x39mm round that was developed in the 50s and 60s for short range hunting... the only company that makes it is Tula Arms, so I sent them an email to say I had bought this rifle and was wanting some ammo shipped to me... to which they replied it is a local round made in rather small numbers and they don't have a distribution agent in New Zealand.
I talked to the shop that sold me the rifle and they said the current situation with Russia and the west means it is hard to get much of any ammo but the guy in Germany that they get their ammo from (he must be cheap) doesn't carry 5.6 x 39mm.
I suspect if it was an American company they would bend over backwards to find out what shop sold me the rifle and offer to send them the ammo... for a good profit margin for themselves of course seeing as how they clearly have this market cornered.
The Russian way means the guy doesn't really have to do much but gets no sale and I have to think of some alternative (currently looking at chamber inserts to allow another round to be used like 5.7x28mm or something that will fit inside the case of the round it uses...).
The American way would mean the American company makes some money selling a product in a new market and could make a double profit because they know I have no other choice.
Ironically the 5.6x39mm shell casings are available... about $140 per 100 empty shell cases without primers and without bullets and without powder... it seems they are used for the .22PPC and the 6mmPPC bench shooting calibres that dominate the 0-300m range in terms of accuracy... but nobody buys ammo in those calibres as they get better accuracy making their own.
Anyway, back to topic, it is in the interests of all manufacturers to have as broad a range of products in as many different markets as possible because markets change and you have to change with them but having an income stream or two that you can rely on will make things much less stressful.
It is like not letting your wife work on your home business... if she works in a local shop or office then when things are not going well for the home business you still have money coming in... if you both work in the same business and things are not going well then you can have problems...
Businesses where things are related... for instance a boat making company that creates anti mine vessels that have glass reinforced plastic hulls... well you can make all sorts of hulls with that sort of equipment... yachts, dinghies, RVs and light off road vehicles etc etc.
Look at Kalashnikov with small arms obviously, but also small boats and UAVs and other technologies like electric Motor bikes etc...