Vortex CM-202 Cantilever 30mm Mount (2" Offset) - $60 in Houston
Photos show CM-102 on box but its a CM-202..
Great for 1-4x24 or 1-6x24 Rifle scopes..

IMG_4651 by Zhou Jett, on Flickr

IMG_4652 by Zhou Jett, on Flickr