Cleaning a few guns tonight after my 3rd range trip without cleaning them. I don't know what it is about CZ's but they seem to get a lot more dirty than other guns with roughly the same round count shooting the same ammo. The magazines get a bunch of shit all over them too, to the point where they won't drop free anymore and you have to strip them out of the gun. Just cleaned the P-07 and my designated range mags for it and I used about 4 or 5 wipes per magazine to get them clean inside and out. They drop free with no issues now after cleaning them though.