Forge Masters Musket?

They were under the impression that they were supplying special piping for the Iraqi petro-chemical industry:

That look like a "Gun" to you?

The Iraqi's even have the forethought to export these through Immingham Docks where these components would sit there alongside similar looking spoolpiece components bound for platforms in the UK sector of the North Sea - it was only by chance that they were detected. Remember that Post-Graduate whose work was plagiarised by Tony & Co? That was what his work was about the intricate system of shell companies and fronts that Saddam had set up to get stuff normally prohibited into Iraq undetected.

Matrix Churchill? A Company that made machinery for making machine tools - not weapons. Here is the full story of that in a nutshell, as that seems to be in vogue:

"In the late 1980s, Matrix Churchill, a British (Coventry) aerospace quality machine tools manufacturer that had been bought by the Iraqi government, was exporting machines used in weapons manufacture to Iraq. According to the International Atomic Energy Authority, its products later found in Iraq, were among the highest quality of their kind in the world. They were 'dual use' machines that 'could' be used to manufacture weapons parts. Such exports are subject to government control, and Matrix Churchill had the appropriate government permissions, following a 1988 relaxation of export controls. Crucially, however, this relaxation had not been announced to parliament – indeed, when asked in parliament whether controls had been relaxed, the then-Secretary of State for Trade and Industry replied incorrectly that they had not.
Matrix Churchill was contacted by HM Customs and Excise, under suspicion of exporting arms components to Iraq without permission. It had this permission but this was denied by the government, in line with the most recently announced policy on the matter. Matrix Churchill's directors were therefore prosecuted in 1991 by Customs and Excise for breaching export controls.
The trial did not go well for the government – public interest immunity certificates obtained by the government to suppress some critical evidence (supposedly on grounds of national security) were quickly overturned by the trial judge, forcing the documents to be handed over to the defence. The trial eventually collapsed when former minister Alan Clark admitted he had been 'economical with the actualité' in answer to parliamentary questions over export licenses to Iraq."

Remember Alan Clark Musket he was your "historian" who also admitted on another occasion when he had been economical with the truth - when he admitted that he had invented the "Lions led by Donkeys" conversation between two German Staff Officers.