I was given a norvica marvic gold 4.5mm air rifle from my father inlaw.
What is the best way to silence or muzzle the sound?
Is it possible to buy a moderator /silencer off the shelf ?
Can a springer be moderated?
Yes a spring rifle can be moderated, but bear in mind the to the shooter it will always sound noisier as the action is next to your ear.
Even a super tuned spring rifle will sound noisy to the shooter, but get someone else to shoot it whilst you stand a short distance away it will sound much quieter.