You can run almost any Perl 5 module from Perl 6 (well, probably any module except those doing real black magic or very special things) with the following P6 module:

use Inline::Perl5;
[download]

Take a look at this: https://github.com/niner/Inline-Perl5

Note that it seems that you can also run P6 modules from P5, but I haven't really investigated this.