Ok lets revive this one! Put together a pistol the other day and am looking at optics. I have and like the strikefire 2 on my carbine and tried putting it on the pistol build, it just feels HUGE on it. I am thinking the sparc, however I had a trs-25 a few years ago and hated it. the 20mm tube was small for my liking, and the Bushnell dot ghosted in the upper left corner being left handed it was difficult to chase the dot around. How is the sparc? anyone have both is there much of a weight difference between the two? I am thinking of getting another strikefire as its what I'm use to and like. Who can sell me on the sparc?