I have an old umarex CO2 pistol I no longer use, and intend to move it on. What are the rules and general guide for me to sell this second hand, not on here, I mean through free ads etc. Am I correct to say it’s a face to face type transaction only, or has anybody found a safe and reliable way to ensure all is above board using a courier. Will couriers even take an air pistol?

Thanks in advance