Well it is not about the right to bear or posses an firearm or any other weapon... In the Czech republic the law about firearms and related stuff pretty sucks and most does the part about self defence where you actually have to let the bad guy kill you before you can defend yourself... Which is a bit strange... And when you want to have a firearm the tests and requirements for recieving the license are quite strict and in most aspects pretty full of BS... ANd the goverment is trying to make it even harder.
Well I have the concealed carry license myself and do carry my M1911 with me.
But in my foriend's case the stuff he has in his garage can't be considered a weapon anymore although in the case of the mortar-shell on the first picture - well that thing is incredibely heavy so If you drop it on someone it will hurt but you would have to be able to lift it first

The rest is just exotic looking decoration drawing attention of everyone who gets inside...
The guy also does pyro effects for the WW1 flying circus show... Heh last time the guys from german Luftwaffe at the airshow were a bit pissed when he set off the final pyro effects and those guys had a persistent idea that the detonation was a bit too close to their parked Tornados

He used to fly AH for a while also... But now he spends more and more time building the Radio Controlled model of the S-300V SAM launcher vehicle
