This will work: http://www.tacticalshotgunner.com/hook-loop-for-benelli-m1014-p-251.html
This might: http://www.gggaz.com/benelli-m4-single-point-sling-attachment-looped.html
I primarily use Eezox CLP (which I prefer over BreakFree). When I use a separate lube it's Mobil 1 or sometimes Ultima-lube Universal from Wilson Combat. Occasionally, I use Hoppes #9 bore solvent.