If it's to be a ccw pistol, you may want to rethink the adjustable sights. They may snag on something at the wrong time.
Think smooth & rounded
Wilson Combat makes a low profile non snag rear sight that is excellent and not very costly.
“If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that ye were our countrymen.” ― Samuel Adams