Which hosts will fit this optic?

[Budda]

http://www.cnqualitygoods.com/goods.php?id=1590
http://www.cnqualitygoods.com/goods.php?id=1580
http://www.cnqualitygoods.com/goods.php?id=1581

thanks.

[JohnnyMac]

The 21mm will fit a modded mini-mag