Weihrauch B&C HW95K, B&C HW35K, BAM B26-2 venoman custom, QB78 DL custom.
You ain't so big, you jus' tall, tha's all.
http://ukchineseairgunforum.myfreeforum.org/index.php
Falcon barrel = 10mm, if you can get one.
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Jerry
The 2260 barrel could be an option, a search for Harper turned up a place holder site.