DayZ field wiki · Gear
Gun cleaning kit
Rust is a quiet death
Short answer
Weapons decay. This box argues with that. Not a miracle.
Also: cleaning kit · gun oil
How it works
Cleaning kits repair firearms within reason. Jams still happen if you skip it.
What to do
Clean what you mean to keep. See weapon-care.
Don't
Don't wash a ruined gun in a pond and call it done.