Changing from iron sights to a reflex sight takes some training. If you haven’t worked the mechanics” adding a reflex sight may actually slow your shooting down initially. The SPOT is a very simple and cost effective way to train for your reflexive optic. The SPOT fits on your SIRT slide and uses the red trigger take up laser to mimic the dot in a pistol mounted optic.
NextLevel Training SIRT SPOT Reflex Sight Trainer, Fits Sirt SPOT 110/115/115C Slide, Plastic, Matte Finish, Black 04-000-1036-00