American defense Recon QD cantilever mount 34mm

I mounted an optic in this mount and zeroed the rifle and that's all the action it has seen. Never used provided locktite on fasteners and I only torque to 16 inch pounds.  

No marks, looks brand new. Comes with everything originally in the box (locktite, sticker, user guide and Allen key. 

$330 new, I'm asking $275 shipping included to major areas.