I picked up a KAC quadrant with an MRDS on it, and sold it ($450 on GB). By the time my 10.5" MRP got the M203, the red dot rail mount sight, and a leaf sight it was unbearable probably 15 lb or so. I got rid of it and stuck with the leaf sight, also had the IR laser barrel mounted sight, it too was god awful to handle. My interest in a spuhr would be for a standalone set-up with aimpoint micro.