The four-week campaign is taking place across West Yorkshire and focuses on specific blank-firing guns that have been reclassified as illegal weapons.
The amnesty covers five Italian-made Bruni models, identified as readily convertible into live-firing guns using household tools, following tests by the National Crime Agency.
Supt Emma Cheney, head of armed policing at West Yorkshire Police, said: “Tackling gun crime is a force priority and there is evidence that TVBFs have been used in serious criminality in our communities.
“In their original state TVBFs have a fully blocked barrel and are designed to discharge only blank cartridges, and they are sold with at least 50 per cent of their visible surface painted a bright colour.
“However, criminals might paint them black and tests have now shown they can be readily converted into a lethal purpose firearm.
“We are determined to continue working to disrupt the national supply and criminal use of firearms and we want as many of these weapons as possible to be handed in to prevent them getting into the wrong hands in the future.”
West Yorkshire Police launch firearms amnesty for illegal Bruni blank-firing guns. Surrender weapons at select stations without prosecution until 27 February.
The national amnesty will take place from Monday 2 February and runs until Friday 27 February.
Members of the public can surrender the listed weapons at designated police stations without facing prosecution and without having to provide personal details.
The five weapons covered by the amnesty are 8mm PAK Bruni BBM Model 92 blank firing self-loading pistol, 8mm PAK Bruni BBM New Police blank firing self-loading pistol, 8mm PAK Bruni BBM Model 96 blank firing self-loading pistol, 8mm PAK Bruni BBM Model ‘GAP’ blank firing self-loading pistol, and the .380R (9mmK) PAK Bruni BBM ME Ranger single-action blank firing revolver.
ACC Tim Metcalfe, National Police Chiefs’ Council lead for the criminal use of firearms, said: “When we identify that any models can be easily converted to a functioning firearm, it is crucial that we do all we can to remove those models from sale and circulation.
“We work closely with the National Crime Agency to identify and disrupt workshops being set up by criminals to convert blank firers in to potentially lethal weapons, and this four-week amnesty will support those efforts.”
West Yorkshire Police stations accepting surrenders include Calderdale District HQ (Halifax), Dewsbury, Keighley, Bradford District HQ (Trafalgar House), Kirklees District HQ (Huddersfield), Leeds District HQ (Elland Road), and Wakefield District HQ (Normanton).
People are advised to call 101 before travelling to receive guidance on safe transport.
Those aware of illegal firearms activity can contact West Yorkshire Police online at westyorkshire.police.uk/LiveChat or via 101.
Crimestoppers can be contacted anonymously on 0800 555 111.