Burris or Venom would be my choice. If you want to leave your iron sights on the gun just attach a rail and mount the RDS on that. That's what I did am totally satisfied with the results. Down the road you pull the dot off and sell the pistol to some Boomer like me who used to use irons when he was 15. Then he finds out he can't see well enough to shoot it and mounts a RDS on it.