group industries

I can't find anything online for value. Group Industries Uzi. 510,xxx serial number. 16" barrel chambered in 45 acp. Folding stock. Two charging handles. One for open sights and one has a 1911 rail with a cheap Truglow red dot sight. Any information on history or value would be greatly appreciated.

I acquired a Group Industries Uzi chambered be in 45acp this weekend and would like information about date of manufacturer and value. It came with two charging handles. One has a cheap Truglo optic mounted to a rail and the other looks to be used for the open sights. It has a folding stock and...