Just got my hands on a Scorpion pistol. I ordered the basic upgrades (trigger spring, grip, charging handle). Now I'm looking at what optic to put on top. Thinking of going with either Trijicon MRO or Holosun 503. Was looking at the Primary Arms prism with the Gemini reticle but not sure I want to put a scope that weighs 13oz on top(reason I was thinking of getting it was I'm thinking of getting the ak47 version for my ak pistol)compared to 3-5oz for the MRO or 503. This will be a plinker for now with the possibility of being a truck gun until I find something else. Any info one way or the other would be appreciated.