So I recently purchased the Springfield Echelon 4.0c gear pack, absolutely love it. However the optic that comes with it, is horrible. The one that came with it, the lens had fell off while firing, this is only day two at the range, contacted Viridian and they sent me a new one. Well the 2nd one the adjustment screws were reversed and could not sight in properly, and would also not hold adjustment after firing. At this point I was fed up and asked for a credit, both Viridian and Springfield told me no. The best they could do is replacement. Point being, don’t waste your money on the gear pack. Just get the Echelon and get a better optic on it. Hard lessoned learned.