Looks like bmx rear end welded onto an mtb front, but still it's a cracker. Sadly US so you can triple the price.
https://www.ebay.co.uk/itm/265731797056?hash=item3dded97040:g:9cgAAOSwR9dio-~k
https://www.ebay.co.uk/itm/265731797056?hash=item3dded97040:g:9cgAAOSwR9dio-~k
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