I have a like new in package holosun scs m&p that mounts directly to all m&p optic cutouts, without the need of an adapter plate. Additionally these optics never needa battery, as they function off of solar for longer than a lifetime. They go for 350 new, and this one is like new still, barely used. I am asking 250 firm. If u are lookig for a high quality optic for your M&P , text REDACTED