QD Higher Tactical Aimpoint Scope Mount Base 20mm Rail
Please note, it can only go on a 20mm rail one way round. If you put it on the wrong way you may think it was machined wrong and start filing at it! It actually is machined very well considering its a china made part and is great if you want a dot sight/ scope to clear the front sight post on an m4 or just raise it up a bit more.
Date Added: 12/16/2012 by John Henry