I have an almost new X400 that I need gone. It has seen 20 rounds while on my HK45. There are no scratches or scuffs anywhere. I need a like condition Aimpoint M3 with a cantiliver mount. I want to do an even trade. We are talking a light that goes for $595 and an optic that goes for $595, so please don't try to low ball me. If you have an M2 or Eotech we can talk, but you will have to sweeten the deal on your end. Email works best for contact. Thanks.