Mine was kept in evidence for about 18 months, which due to a very slow criminal justice system is how long it took for my case to make it in front of a grand jury. The grand jury returned a no bill, I wasn't charged, and I had to wait about 3 days for paperwork to get filed before I could collect my gun from the evidence room.
It was in perfect condition when I got it back. No rust, dings, scratches, etc.
They did fire 5 of the remaining rounds from my magazine for testing purposes; I didn't get those back but I did get back what was left in the magazine after the shooting and the testing.
This is exactly why it's stupid to EDC something like a treasured, $2500 custom 1911, or even to use one as your bedside piece. I've heard idiotic arguments disputing this, more times than I can count, but unless you're a millionaire, it's just self-indulgent stupidity. Period. There are a ton of guns around that are perfectly reliable,lethal, yet economical, and that won't be a heartbreaker to lose indefinitely.
If you're using a gun in a self defense application, then you HAVE to consider worst the case scenario, and plan accordingly.
Call it stupid or idiotic if you will. Mine was a relatively expensive AR15 with about $1000 in optics and another $200 in flashlight/sling/mounts that all got locked up. Even if the rifle had been a bargain bin $500 AR I still would have had close to $1700 in it.
While not a millionaire, I always knew it was possible that it would get taken if I used it; I planned for such event, and had a nearly identical backup in the safe.
I wasn't heartbroken, I just surrendered the tool for 18 months and then I got it back.
In my opinion I used the best tool available at the time, it worked perfectly, and it went away for 18 months. The temporary loss of the use of that gun was the least of my concerns.
I say, use whatever you are most comfortable with and that you shoot the best , whatever the cost, and know that it might go away. I can honestly say that if I never got that rifle back I could happily call it a $2,700 tool that served its purpose and then disappeared. If that makes me a stupid idiot, so be it.