People can hand the weapons in at police stations across West Yorkshire without facing prosecution.
Thomas McKenna, 60, is being sentenced over a gun and weapons workshop he had within his caravan.
An amnesty for the surrender of five blank-firing gun models is taking place during February in England and Wales.
Once considered harmless, blank-firing guns are now at the center of a legal upheaval, with owners facing severe penalties as authorities tighten the noose.
Dyfed-Powys Police is holding a four-week Firearms Amnesty for five types of BRUNI-manufactured side/top-venting blank firers ...
Residents in Shropshire who own a particular type of blank firing pistol are being urged to hand them in during an amnesty ...
THIS is the moment armed cops raid an arms factory in a caravan at the UK’s largest traveller site and arrest an underworld ...
Law enforcement agencies across the UK have identified an increasing threat to public safety from the conversion of top and side venting blank firing imitation firearms into lethal-barrelled weapons ...
Police have launched a second gun amnesty to keep blank-firing guns - which can easily be converted into deadly weapons - ...
POLICE in York are holding a gun amnesty to keep these five blank-firing guns - which can easily be converted into lethal weapons - off the streets.
McKenna ran his gun conversion business with a lathe and a drill, from one of three caravans he had at a large traveller site ...