I mean, if you can't get your hands on N or SN, then I would choose the gun. I choose a gun as my plan B..
If your country is retarded enough to ban guns, just give the gov a middle finger and 3D print a gun by yourself.
Trust me, I did that with a normal 3D printer and parts which I got from Aliexpress.
My 3D printed 9x19mm AK47 already survived like more than 30 rounds by now and I'm sure it won't fail if I choose the plan B, since after all those rounds, I didn't experience any damages in the frame.
However, I can't say that about a Glock that I printed. The frame already got some cracks after 10 rounds and I used the same strong filament like on the AK :/
Other (more legal) option, would be probably a blank gun.
I heard about a dude who had a blank gun and killed himself with it by holding it directly to his head.