35 miles and half hour down the road from me. Interesting to discover we still actually have police in this neck of the woods. Haven't seen a police person in flesh, or car, for nigh on a year now.
I know expecting intelligent commentary from reporters is optimistic but 30 weapons isn't large scale. Few days work to set-up and go with any sort of sensible shop equipment. Interact and Triumph 2000 in the picture are just so cutting edge. Not.
Making serviceable guns got easy about when the Sten was designed. Not that you'd catch me anywhere near either end or side of that particular horror. But the AK47 got cheap'n effective sorted. I'd guess pretty much everyone on here could do an adequately functional one if they had to. Not exponentially harder to make and generally squaddie proof. Although endemic barrel climb makes it more a shotgun than proper aimed weapon. 15 lb of lead on the snout would probably help.
Ammunition, not the weapon is the real issue. Cases are a lot more demanding to make than the unknowing think and propellant involves chemistry which, according to A.J.K.Setright, is "A foul and noxious business with which no true gentleman would concern himself.".
Clive