I have a lightly used M3 clone optic that I used on my 5.45 AR for approx 300 rounds. I have found that my AR is more accurate at 200-300 yards then I gave it credit for so I want to put some magnification on it. The glass is clean with no scratches or marks. The body has no scratches or marks, but the sharp corners of the optic look shiny, but they were that way from Marshall.
The optic has the upgraded cantilever mount and runs $117 delivered from Marshall.
For Details: http://www.primaryarms.com/product.s...9&categoryId=5
As far as trades I would consider a "budget" or higher quality optic with magnification. No airsoft as it will be going on a centerfire.