A man from Langley has been convicted of possessing and conspiring to import firearms - while his colleague from Slough was found guilty of possession.
Michael Nicholls, 26, of Common Road, Langley and Steven Spires, 36, of the Frithe, Slough were convicted at Blackfriars Crown Court on Thursday last week, a year after officers went to the Seaborough industrial estate in Swallow Street, Iver, where they saw the two men take something from a shipping container before driving away in a van. 
Armed officers from Thames Valley Police were part of the team as the van was stopped and nine more firearms were found inside
Nicholls and Spires were arrested - having played a key role in a plot to import 89 lethal firearms into the UK.
Earlier the investigation by joint Metropolitan Police and National Crime Agency’s Organised Crime Partnership (OCP) had led to a trailer full of concealed weapons being stopped in France as it entered the Channel Tunnel.
It contained 79 viable 4mm and 6mm handguns and thousands of rounds of ammunition, all hidden in specially adapted concealments in engine blocks.
The driver had collected the blocks from Denis Kolencukov, 24, at the Orlen petrol station in Boleslawiec, Poland unaware of the weapons hidden inside.
Kolencukov was arrested as he arrived in Dover from Dunkirk on the same day.
The guns were viable Ekol Arda 4mm Flobert and Atak Arma 6mm Flobert revolvers. These are all prohibited firearms in the UK.
Enquiries led officers to the Seaborough estate in Iver and to Spires' and Nicholls' arrest. 
Michael Nicholls was found guilty of possessing and importing firearms, Steven Spires of possession.
Spires, Nicholls and Kolencukov will be sentenced at Blackfriars Crown Court on August 3.
DI John Nolan from the Organised Crime Partnership said: “Kolencukov was the driving force behind the importation a vast number of these extremely dangerous firearms. Not only were they viable weapons, they were packaged up with thousands of rounds of ammunition and I have no doubt that they were being brought into the UK for the sole purpose of causing serious and fatal injuries.
“Although the level of firearm crime in the UK remains one of the lowest in the world, since 2016 these weapons have been seen more frequently in the UK so it’s vital that we work collectively with our partners to take action across borders to ensure the risk is minimised."