lol, they get cleaned and perhaps till something breaks or they malfunction may be a little extreme, but my carries which is quite a few, are not cleaned as much as one would expect, i gravitate towards units that can be abused and ignored for a carry. I shoot coated bullets, and have to say it negates so much cleaning issues, i have not bought into the super duper defensive bullets, i have bought into shot placement, and am so confortable with my range ammo. But have to say, my carry (fav) probably hasn't been cleaned more than twice in its two years of carry, and probably 5k plus of rounds, i run a minimum of a two hundred thru it at least once a week, as i try to shoot once a week with the "boys' shooting day is generally a minimum of 1k and usually closer to 1.5k rounds,
the carbines do need a squirt once in a while, but have to say thats about it. my new little plinker the tx22, has probably 5k thru it and no cleaning, but generally they run till i sense a difference in operation, and when you shoot them as much as i do, you know right away.
and i do enjoy the smell of a used gun, hehe, i'm strange like that i guess.
Rj